Subtract 7/4 from 10/72
1st number: 10/72, 2nd number: 1 3/4
10/72 - 7/4 is -29/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 4 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
10/72 = 10 × 1/72 × 1 = 10/72 - Likewise, for the 2nd fraction, since 4 × 18 = 72,
7/4 = 7 × 18/4 × 18 = 126/72 - Subtract the two like fractions:
10/72 - 126/72 = 10 - 126/72 = -116/72 - After reducing the fraction, the answer is -29/18
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