Subtract 3/7 from 80/30
1st number: 2 20/30, 2nd number: 3/7
80/30 - 3/7 is 47/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 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 7 × 30 = 210,
3/7 = 3 × 30/7 × 30 = 90/210 - Subtract the two like fractions:
560/210 - 90/210 = 560 - 90/210 = 470/210 - After reducing the fraction, the answer is 47/21
- In mixed form: 25/21
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