Subtract 45/8 from 42/2
1st number: 21 0/2, 2nd number: 5 5/8
42/2 - 45/8 is 123/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
42/2 = 42 × 4/2 × 4 = 168/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
45/8 = 45 × 1/8 × 1 = 45/8 - Subtract the two like fractions:
168/8 - 45/8 = 168 - 45/8 = 123/8 - In mixed form: 153/8
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