Subtract 28/30 from 20/5
1st number: 4 0/5, 2nd number: 28/30
20/5 - 28/30 is 46/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
20/5 = 20 × 6/5 × 6 = 120/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
28/30 = 28 × 1/30 × 1 = 28/30 - Subtract the two like fractions:
120/30 - 28/30 = 120 - 28/30 = 92/30 - After reducing the fraction, the answer is 46/15
- In mixed form: 31/15
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