Subtract 20/14 from 21/3
1st number: 7 0/3, 2nd number: 1 6/14
21/3 - 20/14 is 39/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
21/3 = 21 × 14/3 × 14 = 294/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
20/14 = 20 × 3/14 × 3 = 60/42 - Subtract the two like fractions:
294/42 - 60/42 = 294 - 60/42 = 234/42 - After reducing the fraction, the answer is 39/7
- In mixed form: 54/7
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