Subtract 70/42 from 81/5
1st number: 16 1/5, 2nd number: 1 28/42
81/5 - 70/42 is 218/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
81/5 = 81 × 42/5 × 42 = 3402/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Subtract the two like fractions:
3402/210 - 350/210 = 3402 - 350/210 = 3052/210 - After reducing the fraction, the answer is 218/15
- In mixed form: 148/15
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