Subtract 21/14 from 21/12
1st number: 1 9/12, 2nd number: 1 7/14
2112 - 2114 is 14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
2112 = 21 × 712 × 7 = 14784 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
2114 = 21 × 614 × 6 = 12684 - Subtract the two like fractions:
14784 - 12684 = 147 - 12684 = 2184 - After reducing the fraction, the answer is 14
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