7/220+17/330; 0,88-2/15; (1/6+5/18)-(1/18+1/24);

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вопрос

To solve these calculations, we need to first find a common denominator for each fraction.

( \frac{7}{220} + \frac{17}{330}
Common denominator: 66
( \frac{7 \times 3}{220 \times 3} + \frac{17 \times 2}{330 \times 2}
( \frac{21}{660} + \frac{34}{660}
( \frac{55}{660}
Simplified: ( \frac{11}{132} )

( 0.88 - \frac{2}{15}
( \frac{88}{100} - \frac{2}{15}
Common denominator: 30
( \frac{88 \times 3}{100 \times 3} - \frac{2 \times 20}{15 \times 20}
( \frac{264}{300} - \frac{40}{300}
( \frac{224}{300}
Simplified: ( \frac{56}{75} )

( \left(\frac{1}{6} + \frac{5}{18}\right) - \left(\frac{1}{18} + \frac{1}{24}\right)
( \frac{1}{6} + \frac{5}{18} - \frac{1}{18} - \frac{1}{24}
Common denominator for the first set of fractions: 1
( \frac{3}{18} + \frac{5}{18} - \frac{1}{18} - \frac{1}{24}
( \frac{7}{18} - \frac{1}{18} - \frac{1}{24}
Common denominator: 7
( \frac{7 \times 4}{18 \times 4} - \frac{1 \times 4}{18 \times 4} - \frac{1 \times 3}{24 \times 3}
( \frac{28}{72} - \frac{4}{72} - \frac{3}{72}
( \frac{21}{72}
Simplified: ( \frac{7}{24} )