Subtract 45/10 from 42/5
1st number: 8 2/5, 2nd number: 4 5/10
42/5 - 45/10 is 39/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
42/5 = 42 × 2/5 × 2 = 84/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
45/10 = 45 × 1/10 × 1 = 45/10 - Subtract the two like fractions:
84/10 - 45/10 = 84 - 45/10 = 39/10 - In mixed form: 39/10
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