Subtract 5/42 from 90/36
1st number: 2 18/36, 2nd number: 5/42
90/36 - 5/42 is 50/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 42 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 42 × 6 = 252,
5/42 = 5 × 6/42 × 6 = 30/252 - Subtract the two like fractions:
630/252 - 30/252 = 630 - 30/252 = 600/252 - After reducing the fraction, the answer is 50/21
- In mixed form: 28/21
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