Subtract 8/42 from 72/27
1st number: 2 18/27, 2nd number: 8/42
72/27 - 8/42 is 52/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
72/27 = 72 × 14/27 × 14 = 1008/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
8/42 = 8 × 9/42 × 9 = 72/378 - Subtract the two like fractions:
1008/378 - 72/378 = 1008 - 72/378 = 936/378 - After reducing the fraction, the answer is 52/21
- In mixed form: 210/21
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