Subtract 72/30 from 9/4
1st number: 2 1/4, 2nd number: 2 12/30
9/4 - 72/30 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
9/4 = 9 × 15/4 × 15 = 135/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60 - Subtract the two like fractions:
135/60 - 144/60 = 135 - 144/60 = -9/60 - After reducing the fraction, the answer is -3/20
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