Subtract 30/40 from 42/8
1st number: 5 2/8, 2nd number: 30/40
42/8 - 30/40 is 9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
42/8 = 42 × 5/8 × 5 = 210/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Subtract the two like fractions:
210/40 - 30/40 = 210 - 30/40 = 180/40 - After reducing the fraction, the answer is 9/2
- In mixed form: 41/2
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