Subtract 84/15 from 70/84
1st number: 70/84, 2nd number: 5 9/15
70/84 - 84/15 is -143/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
84/15 = 84 × 28/15 × 28 = 2352/420 - Subtract the two like fractions:
350/420 - 2352/420 = 350 - 2352/420 = -2002/420 - After reducing the fraction, the answer is -143/30
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