Subtract 20/16 from 18/49
1st number: 18/49, 2nd number: 1 4/16
18/49 - 20/16 is -173/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 16 is 784
Next, find the equivalent fraction of both fractional numbers with denominator 784 - For the 1st fraction, since 49 × 16 = 784,
18/49 = 18 × 16/49 × 16 = 288/784 - Likewise, for the 2nd fraction, since 16 × 49 = 784,
20/16 = 20 × 49/16 × 49 = 980/784 - Subtract the two like fractions:
288/784 - 980/784 = 288 - 980/784 = -692/784 - After reducing the fraction, the answer is -173/196
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