Subtract 32/21 from 72/18
1st number: 4 0/18, 2nd number: 1 11/21
72/18 - 32/21 is 52/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
32/21 = 32 × 6/21 × 6 = 192/126 - Subtract the two like fractions:
504/126 - 192/126 = 504 - 192/126 = 312/126 - After reducing the fraction, the answer is 52/21
- In mixed form: 210/21
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