Subtract 30/70 from 42/7
1st number: 6 0/7, 2nd number: 30/70
42/7 - 30/70 is 39/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
42/7 = 42 × 10/7 × 10 = 420/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
30/70 = 30 × 1/70 × 1 = 30/70 - Subtract the two like fractions:
420/70 - 30/70 = 420 - 30/70 = 390/70 - After reducing the fraction, the answer is 39/7
- In mixed form: 54/7
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