Subtract 3/63 from 90/84
1st number: 1 6/84, 2nd number: 3/63
90/84 - 3/63 is 43/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
90/84 = 90 × 3/84 × 3 = 270/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
3/63 = 3 × 4/63 × 4 = 12/252 - Subtract the two like fractions:
270/252 - 12/252 = 270 - 12/252 = 258/252 - After reducing the fraction, the answer is 43/42
- In mixed form: 11/42
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