Subtract 20/16 from 15/84
1st number: 15/84, 2nd number: 1 4/16
15/84 - 20/16 is -15/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
15/84 = 15 × 4/84 × 4 = 60/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
20/16 = 20 × 21/16 × 21 = 420/336 - Subtract the two like fractions:
60/336 - 420/336 = 60 - 420/336 = -360/336 - After reducing the fraction, the answer is -15/14
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