Subtract 18/63 from 90/35
1st number: 2 20/35, 2nd number: 18/63
90/35 - 18/63 is 16/7.
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,
90/35 = 90 × 9/35 × 9 = 810/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Subtract the two like fractions:
810/315 - 90/315 = 810 - 90/315 = 720/315 - After reducing the fraction, the answer is 16/7
- In mixed form: 22/7
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