Subtract 84/80 from 72/30
1st number: 2 12/30, 2nd number: 1 4/80
72/30 - 84/80 is 27/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
72/30 = 72 × 8/30 × 8 = 576/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
84/80 = 84 × 3/80 × 3 = 252/240 - Subtract the two like fractions:
576/240 - 252/240 = 576 - 252/240 = 324/240 - After reducing the fraction, the answer is 27/20
- In mixed form: 17/20
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