Subtract 80/30 from 8/28
1st number: 8/28, 2nd number: 2 20/30
8/28 - 80/30 is -50/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
8/28 = 8 × 15/28 × 15 = 120/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
80/30 = 80 × 14/30 × 14 = 1120/420 - Subtract the two like fractions:
120/420 - 1120/420 = 120 - 1120/420 = -1000/420 - After reducing the fraction, the answer is -50/21
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