Subtract 72/84 from 80/70
1st number: 1 10/70, 2nd number: 72/84
80/70 - 72/84 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
80/70 = 80 × 6/70 × 6 = 480/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
72/84 = 72 × 5/84 × 5 = 360/420 - Subtract the two like fractions:
480/420 - 360/420 = 480 - 360/420 = 120/420 - After reducing the fraction, the answer is 2/7
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