Subtract 42/70 from 81/6
1st number: 13 3/6, 2nd number: 42/70
81/6 - 42/70 is 129/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 6 × 35 = 210,
81/6 = 81 × 35/6 × 35 = 2835/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Subtract the two like fractions:
2835/210 - 126/210 = 2835 - 126/210 = 2709/210 - After reducing the fraction, the answer is 129/10
- In mixed form: 129/10
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