Subtract 21/35 from 18/2
1st number: 9 0/2, 2nd number: 21/35
18/2 - 21/35 is 42/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
18/2 = 18 × 35/2 × 35 = 630/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Subtract the two like fractions:
630/70 - 42/70 = 630 - 42/70 = 588/70 - After reducing the fraction, the answer is 42/5
- In mixed form: 82/5
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