Subtract 8/16 from 4/72
4/72 - 8/16 is -4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
4/72 = 4 × 2/72 × 2 = 8/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
8/16 = 8 × 9/16 × 9 = 72/144 - Subtract the two like fractions:
8/144 - 72/144 = 8 - 72/144 = -64/144 - After reducing the fraction, the answer is -4/9
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