Subtract 20/15 from 18/4
1st number: 4 2/4, 2nd number: 1 5/15
18/4 - 20/15 is 19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
18/4 = 18 × 15/4 × 15 = 270/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
20/15 = 20 × 4/15 × 4 = 80/60 - Subtract the two like fractions:
270/60 - 80/60 = 270 - 80/60 = 190/60 - After reducing the fraction, the answer is 19/6
- In mixed form: 31/6
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