Subtract 98/63 from 20/15
1st number: 1 5/15, 2nd number: 1 35/63
20/15 - 98/63 is -2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
20/15 = 20 × 21/15 × 21 = 420/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
98/63 = 98 × 5/63 × 5 = 490/315 - Subtract the two like fractions:
420/315 - 490/315 = 420 - 490/315 = -70/315 - After reducing the fraction, the answer is -2/9
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