Subtract 70/20 from 98/7
1st number: 14 0/7, 2nd number: 3 10/20
98/7 - 70/20 is 21/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
98/7 = 98 × 20/7 × 20 = 1960/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Subtract the two like fractions:
1960/140 - 490/140 = 1960 - 490/140 = 1470/140 - After reducing the fraction, the answer is 21/2
- In mixed form: 101/2
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