Subtract 21/70 from 70/7
1st number: 10 0/7, 2nd number: 21/70
70/7 - 21/70 is 97/10.
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,
70/7 = 70 × 10/7 × 10 = 700/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Subtract the two like fractions:
700/70 - 21/70 = 700 - 21/70 = 679/70 - After reducing the fraction, the answer is 97/10
- In mixed form: 97/10
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