Subtract 40/9 from 42/5
1st number: 8 2/5, 2nd number: 4 4/9
42/5 - 40/9 is 178/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
42/5 = 42 × 9/5 × 9 = 378/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
40/9 = 40 × 5/9 × 5 = 200/45 - Subtract the two like fractions:
378/45 - 200/45 = 378 - 200/45 = 178/45 - In mixed form: 343/45
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