Subtract 20/7 from 98/70
1st number: 1 28/70, 2nd number: 2 6/7
98/70 - 20/7 is -51/35.
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,
98/70 = 98 × 1/70 × 1 = 98/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
20/7 = 20 × 10/7 × 10 = 200/70 - Subtract the two like fractions:
98/70 - 200/70 = 98 - 200/70 = -102/70 - After reducing the fraction, the answer is -51/35
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