Subtract 81/63 from 70/35
1st number: 2 0/35, 2nd number: 1 18/63
70/35 - 81/63 is 5/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
70/35 = 70 × 9/35 × 9 = 630/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
81/63 = 81 × 5/63 × 5 = 405/315 - Subtract the two like fractions:
630/315 - 405/315 = 630 - 405/315 = 225/315 - After reducing the fraction, the answer is 5/7
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