Subtract 20/30 from 35/72
35/72 - 20/30 is -13/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
35/72 = 35 × 5/72 × 5 = 175/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
20/30 = 20 × 12/30 × 12 = 240/360 - Subtract the two like fractions:
175/360 - 240/360 = 175 - 240/360 = -65/360 - After reducing the fraction, the answer is -13/72
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