Subtract 8/48 from 81/21
1st number: 3 18/21, 2nd number: 8/48
81/21 - 8/48 is 155/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
81/21 = 81 × 16/21 × 16 = 1296/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
8/48 = 8 × 7/48 × 7 = 56/336 - Subtract the two like fractions:
1296/336 - 56/336 = 1296 - 56/336 = 1240/336 - After reducing the fraction, the answer is 155/42
- In mixed form: 329/42
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