Subtract 21/80 from 2/50
2/50 - 21/80 is -89/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 50 × 8 = 400,
2/50 = 2 × 8/50 × 8 = 16/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
21/80 = 21 × 5/80 × 5 = 105/400 - Subtract the two like fractions:
16/400 - 105/400 = 16 - 105/400 = -89/400
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