Subtract 21/15 from 42/3
1st number: 14 0/3, 2nd number: 1 6/15
42/3 - 21/15 is 63/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 15 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
42/3 = 42 × 5/3 × 5 = 210/15 - Likewise, for the 2nd fraction, since 15 × 1 = 15,
21/15 = 21 × 1/15 × 1 = 21/15 - Subtract the two like fractions:
210/15 - 21/15 = 210 - 21/15 = 189/15 - After reducing the fraction, the answer is 63/5
- In mixed form: 123/5
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