Subtract 35/90 from 1/72
1/72 - 35/90 is -3/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
1/72 = 1 × 5/72 × 5 = 5/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
35/90 = 35 × 4/90 × 4 = 140/360 - Subtract the two like fractions:
5/360 - 140/360 = 5 - 140/360 = -135/360 - After reducing the fraction, the answer is -3/8
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