Subtract 5/42 from 18/10
1st number: 1 8/10, 2nd number: 5/42
18/10 - 5/42 is 353/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
18/10 = 18 × 21/10 × 21 = 378/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210 - Subtract the two like fractions:
378/210 - 25/210 = 378 - 25/210 = 353/210 - In mixed form: 1143/210
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