Subtract 16/30 from 21/48
21/48 - 16/30 is -23/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
16/30 = 16 × 8/30 × 8 = 128/240 - Subtract the two like fractions:
105/240 - 128/240 = 105 - 128/240 = -23/240
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