Subtract 1/30 from 70/42
1st number: 1 28/42, 2nd number: 1/30
70/42 - 1/30 is 49/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
1/30 = 1 × 7/30 × 7 = 7/210 - Subtract the two like fractions:
350/210 - 7/210 = 350 - 7/210 = 343/210 - After reducing the fraction, the answer is 49/30
- In mixed form: 119/30
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