Subtract 5/42 from 21/5
1st number: 4 1/5, 2nd number: 5/42
21/5 - 5/42 is 857/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
21/5 = 21 × 42/5 × 42 = 882/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210 - Subtract the two like fractions:
882/210 - 25/210 = 882 - 25/210 = 857/210 - In mixed form: 417/210
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