Subtract 90/42 from 64/5
1st number: 12 4/5, 2nd number: 2 6/42
64/5 - 90/42 is 373/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
64/5 = 64 × 42/5 × 42 = 2688/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Subtract the two like fractions:
2688/210 - 450/210 = 2688 - 450/210 = 2238/210 - After reducing the fraction, the answer is 373/35
- In mixed form: 1023/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/10-90/42 64/5-90/84 64/15-90/42 64/25-90/42 64/35-90/42