Subtract 30/8 from 20/10
1st number: 2 0/10, 2nd number: 3 6/8
20/10 - 30/8 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
20/10 = 20 × 4/10 × 4 = 80/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Subtract the two like fractions:
80/40 - 150/40 = 80 - 150/40 = -70/40 - After reducing the fraction, the answer is -7/4
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