Subtract 72/9 from 20/72
1st number: 20/72, 2nd number: 8 0/9
20/72 - 72/9 is -139/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
72/9 = 72 × 8/9 × 8 = 576/72 - Subtract the two like fractions:
20/72 - 576/72 = 20 - 576/72 = -556/72 - After reducing the fraction, the answer is -139/18
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