Subtract 28/32 from 7/72
7/72 - 28/32 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 72 × 4 = 288,
7/72 = 7 × 4/72 × 4 = 28/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
28/32 = 28 × 9/32 × 9 = 252/288 - Subtract the two like fractions:
28/288 - 252/288 = 28 - 252/288 = -224/288 - After reducing the fraction, the answer is -7/9
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