Subtract 15/7 from 20/16
1st number: 1 4/16, 2nd number: 2 1/7
20/16 - 15/7 is -25/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
20/16 = 20 × 7/16 × 7 = 140/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
15/7 = 15 × 16/7 × 16 = 240/112 - Subtract the two like fractions:
140/112 - 240/112 = 140 - 240/112 = -100/112 - After reducing the fraction, the answer is -25/28
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