Subtract 7/32 from 21/15, Solve 1 6/15

Subtract 7/32 from 21/15

1^st number: 1 6/15, 2^nd number: 7/32

21/15 - 7/32 is 189/160.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480

Next, find the equivalent fraction of both fractional numbers with denominator 480
For the 1st fraction, since 15 × 32 = 480,
21/15 = 21 × 32/15 × 32 = 672/480
Likewise, for the 2nd fraction, since 32 × 15 = 480,
7/32 = 7 × 15/32 × 15 = 105/480
Subtract the two like fractions:
672/480 - 105/480 = 672 - 105/480 = 567/480
After reducing the fraction, the answer is 189/160
In mixed form: 129/160

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