Subtract 25/42 from 18/8
1st number: 2 2/8, 2nd number: 25/42
18/8 - 25/42 is 139/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
18/8 = 18 × 21/8 × 21 = 378/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
25/42 = 25 × 4/42 × 4 = 100/168 - Subtract the two like fractions:
378/168 - 100/168 = 378 - 100/168 = 278/168 - After reducing the fraction, the answer is 139/84
- In mixed form: 155/84
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