Subtract 21/7 from 8/70
1st number: 8/70, 2nd number: 3 0/7
8/70 - 21/7 is -101/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
8/70 = 8 × 1/70 × 1 = 8/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
21/7 = 21 × 10/7 × 10 = 210/70 - Subtract the two like fractions:
8/70 - 210/70 = 8 - 210/70 = -202/70 - After reducing the fraction, the answer is -101/35
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