Subtract 72/45 from 25/20
1st number: 1 5/20, 2nd number: 1 27/45
25/20 - 72/45 is -7/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
25/20 = 25 × 9/20 × 9 = 225/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
72/45 = 72 × 4/45 × 4 = 288/180 - Subtract the two like fractions:
225/180 - 288/180 = 225 - 288/180 = -63/180 - After reducing the fraction, the answer is -7/20
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