Subtract 70/9 from 42/50
1st number: 42/50, 2nd number: 7 7/9
42/50 - 70/9 is -1561/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 9 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
42/50 = 42 × 9/50 × 9 = 378/450 - Likewise, for the 2nd fraction, since 9 × 50 = 450,
70/9 = 70 × 50/9 × 50 = 3500/450 - Subtract the two like fractions:
378/450 - 3500/450 = 378 - 3500/450 = -3122/450 - After reducing the fraction, the answer is -1561/225
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