Subtract 42/16 from 20/50
1st number: 20/50, 2nd number: 2 10/16
20/50 - 42/16 is -89/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 16 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 50 × 8 = 400,
20/50 = 20 × 8/50 × 8 = 160/400 - Likewise, for the 2nd fraction, since 16 × 25 = 400,
42/16 = 42 × 25/16 × 25 = 1050/400 - Subtract the two like fractions:
160/400 - 1050/400 = 160 - 1050/400 = -890/400 - After reducing the fraction, the answer is -89/40
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