а) 1 + 3/8 = 1 + 0.375 = 1.375б) 1/4 + 1/8 = 0.25 + 0.125 = 0.375в) 1/10 + 1/15 = 0.1 + 0.0666... = 0.1666...г) 1/2 + 2/3 = 0.5 + 0.6666... = 1.1666...д) 1 - 3/5 = 1 - 0.6 = 0.4е) 1/3 - 1/9 = 0.3333... - 0.1111... = 0.2222...ж) 1/6 - 1/14 = 0.1666... - 0.0714 = 0.0952з) 1 1/3 - 5/6 = 1.3333... - 0.8333... = 0.5и) 2/3 + 5/6 = 0.6666... + 0.8333... = 1.5к) 5/6 + 7/10 = 0.8333... + 0.7 = 1.5333...л) 2 1/3 + 1/6 = 2.3333... + 0.1666... = 2.5м) 2 1/2 + 3/10 = 2.5 + 0.3 = 2.8н) 6 - 3 4/5 = 6 - 3.8 = 2.2о) 4 3/4 - 2 1/8 = 4.75 - 2.125 = 2.625р) 4 1/14 - 1 5/21 = 4.0714 - 1.2381 = 2.8333...с) 5 2/15 - 2 3/10 = 5.1333... - 2.3 = 2.8333...т) 4 1/8 - 1 3/10 = 4.125 - 1.3 = 2.825
д) 3 2/5 - 4/5 = 3.4 - 0.8 = 2.6е) 4 + 2 3/4 - 5 7/8 = 4 + 2.75 - 5.875 = 6.75 - 5.875 = 0.875
а) 1 + 3/8 = 1 + 0.375 = 1.375
б) 1/4 + 1/8 = 0.25 + 0.125 = 0.375
в) 1/10 + 1/15 = 0.1 + 0.0666... = 0.1666...
г) 1/2 + 2/3 = 0.5 + 0.6666... = 1.1666...
д) 1 - 3/5 = 1 - 0.6 = 0.4
е) 1/3 - 1/9 = 0.3333... - 0.1111... = 0.2222...
ж) 1/6 - 1/14 = 0.1666... - 0.0714 = 0.0952
з) 1 1/3 - 5/6 = 1.3333... - 0.8333... = 0.5
и) 2/3 + 5/6 = 0.6666... + 0.8333... = 1.5
к) 5/6 + 7/10 = 0.8333... + 0.7 = 1.5333...
л) 2 1/3 + 1/6 = 2.3333... + 0.1666... = 2.5
м) 2 1/2 + 3/10 = 2.5 + 0.3 = 2.8
н) 6 - 3 4/5 = 6 - 3.8 = 2.2
о) 4 3/4 - 2 1/8 = 4.75 - 2.125 = 2.625
р) 4 1/14 - 1 5/21 = 4.0714 - 1.2381 = 2.8333...
с) 5 2/15 - 2 3/10 = 5.1333... - 2.3 = 2.8333...
т) 4 1/8 - 1 3/10 = 4.125 - 1.3 = 2.825
д) 3 2/5 - 4/5 = 3.4 - 0.8 = 2.6
е) 4 + 2 3/4 - 5 7/8 = 4 + 2.75 - 5.875 = 6.75 - 5.875 = 0.875