Subtract 21/42 from 72/14
1st number: 5 2/14, 2nd number: 21/42
72/14 - 21/42 is 65/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
72/14 = 72 × 3/14 × 3 = 216/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Subtract the two like fractions:
216/42 - 21/42 = 216 - 21/42 = 195/42 - After reducing the fraction, the answer is 65/14
- In mixed form: 49/14
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