Subtract 21/35 from 42/10
1st number: 4 2/10, 2nd number: 21/35
42/10 - 21/35 is 18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
42/10 = 42 × 7/10 × 7 = 294/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Subtract the two like fractions:
294/70 - 42/70 = 294 - 42/70 = 252/70 - After reducing the fraction, the answer is 18/5
- In mixed form: 33/5
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