Subtract 7/9 from 9/12
912 - 79 is -136.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
912 = 9 × 312 × 3 = 2736 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
79 = 7 × 49 × 4 = 2836 - Subtract the two like fractions:
2736 - 2836 = 27 - 2836 = -136
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