Subtract 3/72 from 80/30
1st number: 2 20/30, 2nd number: 3/72
80/30 - 3/72 is 21/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
80/30 = 80 × 12/30 × 12 = 960/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
3/72 = 3 × 5/72 × 5 = 15/360 - Subtract the two like fractions:
960/360 - 15/360 = 960 - 15/360 = 945/360 - After reducing the fraction, the answer is 21/8
- In mixed form: 25/8
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