Subtract 8/42 from 15/9
1st number: 1 6/9, 2nd number: 8/42
15/9 - 8/42 is 31/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
15/9 = 15 × 14/9 × 14 = 210/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
8/42 = 8 × 3/42 × 3 = 24/126 - Subtract the two like fractions:
210/126 - 24/126 = 210 - 24/126 = 186/126 - After reducing the fraction, the answer is 31/21
- In mixed form: 110/21
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