Subtract 3/70 from 54/42
1st number: 1 12/42, 2nd number: 3/70
54/42 - 3/70 is 87/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
54/42 = 54 × 5/42 × 5 = 270/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Subtract the two like fractions:
270/210 - 9/210 = 270 - 9/210 = 261/210 - After reducing the fraction, the answer is 87/70
- In mixed form: 117/70
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