Subtract 5/90 from 90/42
1st number: 2 6/42, 2nd number: 5/90
90/42 - 5/90 is 263/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
90/42 = 90 × 15/42 × 15 = 1350/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
5/90 = 5 × 7/90 × 7 = 35/630 - Subtract the two like fractions:
1350/630 - 35/630 = 1350 - 35/630 = 1315/630 - After reducing the fraction, the answer is 263/126
- In mixed form: 211/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42-10/90 90/84-5/90 90/42-15/90 90/42-25/90 90/42-35/90