Subtract 70/42 from 81/14
1st number: 5 11/14, 2nd number: 1 28/42
81/14 - 70/42 is 173/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
81/14 = 81 × 3/14 × 3 = 243/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
70/42 = 70 × 1/42 × 1 = 70/42 - Subtract the two like fractions:
243/42 - 70/42 = 243 - 70/42 = 173/42 - In mixed form: 45/42
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