Subtract 42/48 from 70/18
1st number: 3 16/18, 2nd number: 42/48
70/18 - 42/48 is 217/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
70/18 = 70 × 8/18 × 8 = 560/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
42/48 = 42 × 3/48 × 3 = 126/144 - Subtract the two like fractions:
560/144 - 126/144 = 560 - 126/144 = 434/144 - After reducing the fraction, the answer is 217/72
- In mixed form: 31/72
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