31/60 + [7/20 + 11/60]
First, find a common denominator for the fractions:
31/60 + [21/60 + 11/60]
Now, add the numerators:
31 + 21 + 11 = 63
Combine the fractions:
63/60
Reduce the fraction:
63/60 = 21/20
So, 31/60 + [7/20 + 11/60] = 21/20
31/60 + [7/20 + 11/60]
First, find a common denominator for the fractions:
31/60 + [21/60 + 11/60]
Now, add the numerators:
31 + 21 + 11 = 63
Combine the fractions:
63/60
Reduce the fraction:
63/60 = 21/20
So, 31/60 + [7/20 + 11/60] = 21/20