Subtract 72/45 from 20/24
1st number: 20/24, 2nd number: 1 27/45
20/24 - 72/45 is -23/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
20/24 = 20 × 15/24 × 15 = 300/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
72/45 = 72 × 8/45 × 8 = 576/360 - Subtract the two like fractions:
300/360 - 576/360 = 300 - 576/360 = -276/360 - After reducing the fraction, the answer is -23/30
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