Subtract 5/90 from 15/63
15/63 - 5/90 is 23/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
5/90 = 5 × 7/90 × 7 = 35/630 - Subtract the two like fractions:
150/630 - 35/630 = 150 - 35/630 = 115/630 - After reducing the fraction, the answer is 23/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63-5/90 15/63-10/90 45/63-5/90 15/63-15/90 75/63-5/90 15/63-25/90 15/63-35/90