Subtract 42/10 from 45/9
1st number: 5 0/9, 2nd number: 4 2/10
45/9 - 42/10 is 4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
45/9 = 45 × 10/9 × 10 = 450/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Subtract the two like fractions:
450/90 - 378/90 = 450 - 378/90 = 72/90 - After reducing the fraction, the answer is 4/5
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