Subtract 72/49 from 81/16
1st number: 5 1/16, 2nd number: 1 23/49
81/16 - 72/49 is 2817/784.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 49 is 784
Next, find the equivalent fraction of both fractional numbers with denominator 784 - For the 1st fraction, since 16 × 49 = 784,
81/16 = 81 × 49/16 × 49 = 3969/784 - Likewise, for the 2nd fraction, since 49 × 16 = 784,
72/49 = 72 × 16/49 × 16 = 1152/784 - Subtract the two like fractions:
3969/784 - 1152/784 = 3969 - 1152/784 = 2817/784 - In mixed form: 3465/784
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