Subtract 18/84 from 42/36
1st number: 1 6/36, 2nd number: 18/84
42/36 - 18/84 is 20/21.
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,
42/36 = 42 × 7/36 × 7 = 294/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252 - Subtract the two like fractions:
294/252 - 54/252 = 294 - 54/252 = 240/252 - After reducing the fraction, the answer is 20/21
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