Subtract 21/4 from 18/50
1st number: 18/50, 2nd number: 5 1/4
18/50 - 21/4 is -489/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 4 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
18/50 = 18 × 2/50 × 2 = 36/100 - Likewise, for the 2nd fraction, since 4 × 25 = 100,
21/4 = 21 × 25/4 × 25 = 525/100 - Subtract the two like fractions:
36/100 - 525/100 = 36 - 525/100 = -489/100
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