Subtract 28/70 from 80/30
1st number: 2 20/30, 2nd number: 28/70
80/30 - 28/70 is 34/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
80/30 = 80 × 7/30 × 7 = 560/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210 - Subtract the two like fractions:
560/210 - 84/210 = 560 - 84/210 = 476/210 - After reducing the fraction, the answer is 34/15
- In mixed form: 24/15
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