Subtract 4/15 from 9/72
9/72 - 4/15 is -17/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
4/15 = 4 × 24/15 × 24 = 96/360 - Subtract the two like fractions:
45/360 - 96/360 = 45 - 96/360 = -51/360 - After reducing the fraction, the answer is -17/120
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