Subtract 40/50 from 42/18
1st number: 2 6/18, 2nd number: 40/50
42/18 - 40/50 is 23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
42/18 = 42 × 25/18 × 25 = 1050/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Subtract the two like fractions:
1050/450 - 360/450 = 1050 - 360/450 = 690/450 - After reducing the fraction, the answer is 23/15
- In mixed form: 18/15
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