Subtract 4/72 from 3/30
3/30 - 4/72 is 2/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
3/30 = 3 × 12/30 × 12 = 36/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Subtract the two like fractions:
36/360 - 20/360 = 36 - 20/360 = 16/360 - After reducing the fraction, the answer is 2/45
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