Subtract 84/45 from 5/7
1st number: 5/7, 2nd number: 1 39/45
5/7 - 84/45 is -121/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
5/7 = 5 × 45/7 × 45 = 225/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
84/45 = 84 × 7/45 × 7 = 588/315 - Subtract the two like fractions:
225/315 - 588/315 = 225 - 588/315 = -363/315 - After reducing the fraction, the answer is -121/105
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