Subtract 3/80 from 72/30
1st number: 2 12/30, 2nd number: 3/80
72/30 - 3/80 is 189/80.
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,
3/80 = 3 × 3/80 × 3 = 9/240 - Subtract the two like fractions:
576/240 - 9/240 = 576 - 9/240 = 567/240 - After reducing the fraction, the answer is 189/80
- In mixed form: 229/80
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