Subtract 6/45 from 81/42
1st number: 1 39/42, 2nd number: 6/45
81/42 - 6/45 is 377/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
81/42 = 81 × 15/42 × 15 = 1215/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
6/45 = 6 × 14/45 × 14 = 84/630 - Subtract the two like fractions:
1215/630 - 84/630 = 1215 - 84/630 = 1131/630 - After reducing the fraction, the answer is 377/210
- In mixed form: 1167/210
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