Subtract 30/70 from 70/42
1st number: 1 28/42, 2nd number: 30/70
70/42 - 30/70 is 26/21.
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,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
30/70 = 30 × 3/70 × 3 = 90/210 - Subtract the two like fractions:
350/210 - 90/210 = 350 - 90/210 = 260/210 - After reducing the fraction, the answer is 26/21
- In mixed form: 15/21
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