Subtract 72/80 from 84/10
1st number: 8 4/10, 2nd number: 72/80
84/10 - 72/80 is 15/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
84/10 = 84 × 8/10 × 8 = 672/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Subtract the two like fractions:
672/80 - 72/80 = 672 - 72/80 = 600/80 - After reducing the fraction, the answer is 15/2
- In mixed form: 71/2
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