Subtract 30/4 from 18/8
1st number: 2 2/8, 2nd number: 7 2/4
18/8 - 30/4 is -21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 4 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 8 × 1 = 8,
18/8 = 18 × 1/8 × 1 = 18/8 - Likewise, for the 2nd fraction, since 4 × 2 = 8,
30/4 = 30 × 2/4 × 2 = 60/8 - Subtract the two like fractions:
18/8 - 60/8 = 18 - 60/8 = -42/8 - After reducing the fraction, the answer is -21/4
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