Subtract 4/84 from 90/36
1st number: 2 18/36, 2nd number: 4/84
90/36 - 4/84 is 103/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
4/84 = 4 × 3/84 × 3 = 12/252 - Subtract the two like fractions:
630/252 - 12/252 = 630 - 12/252 = 618/252 - After reducing the fraction, the answer is 103/42
- In mixed form: 219/42
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