Subtract 72/15 from 20/9
1st number: 2 2/9, 2nd number: 4 12/15
20/9 - 72/15 is -116/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
20/9 = 20 × 5/9 × 5 = 100/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
72/15 = 72 × 3/15 × 3 = 216/45 - Subtract the two like fractions:
100/45 - 216/45 = 100 - 216/45 = -116/45
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