Subtract 72/5 from 45/20
1st number: 2 5/20, 2nd number: 14 2/5
45/20 - 72/5 is -243/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
72/5 = 72 × 4/5 × 4 = 288/20 - Subtract the two like fractions:
45/20 - 288/20 = 45 - 288/20 = -243/20
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