Subtract 3/7 from 24/90
24/90 - 3/7 is -17/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
24/90 = 24 × 7/90 × 7 = 168/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
3/7 = 3 × 90/7 × 90 = 270/630 - Subtract the two like fractions:
168/630 - 270/630 = 168 - 270/630 = -102/630 - After reducing the fraction, the answer is -17/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/90-3/7 24/90-6/7 24/90-3/14 72/90-3/7 24/90-9/7 24/90-3/21 24/90-15/7 24/90-3/35 24/90-21/7 24/90-3/49