Subtract 70/9 from 21/48
1st number: 21/48, 2nd number: 7 7/9
21/48 - 70/9 is -1057/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
70/9 = 70 × 16/9 × 16 = 1120/144 - Subtract the two like fractions:
63/144 - 1120/144 = 63 - 1120/144 = -1057/144
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