Subtract 21/16 from 84/7
1st number: 12 0/7, 2nd number: 1 5/16
84/7 - 21/16 is 171/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
84/7 = 84 × 16/7 × 16 = 1344/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Subtract the two like fractions:
1344/112 - 147/112 = 1344 - 147/112 = 1197/112 - After reducing the fraction, the answer is 171/16
- In mixed form: 1011/16
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