Subtract 21/16 from 35/28, Solve 1 7/28

Subtract 21/16 from 35/28

1^st number: 1 7/28, 2^nd number: 1 5/16

35/28 - 21/16 is -1/16.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 28 × 4 = 112,
35/28 = 35 × 4/28 × 4 = 140/112
Likewise, for the 2nd fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112
Subtract the two like fractions:
140/112 - 147/112 = 140 - 147/112 = -7/112
After reducing the fraction, the answer is -1/16

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