Subtract 72/90 from 24/63
24/63 - 72/90 is -44/105.
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,
24/63 = 24 × 10/63 × 10 = 240/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Subtract the two like fractions:
240/630 - 504/630 = 240 - 504/630 = -264/630 - After reducing the fraction, the answer is -44/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/63-72/90 72/63-72/90