Subtract 49/42 from 21/6
1st number: 3 3/6, 2nd number: 1 7/42
21/6 - 49/42 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
49/42 = 49 × 1/42 × 1 = 49/42 - Subtract the two like fractions:
147/42 - 49/42 = 147 - 49/42 = 98/42 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
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