Subtract 21/70 from 16/7
1st number: 2 2/7, 2nd number: 21/70
16/7 - 21/70 is 139/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
16/7 = 16 × 10/7 × 10 = 160/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Subtract the two like fractions:
160/70 - 21/70 = 160 - 21/70 = 139/70 - In mixed form: 169/70
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