Subtract 40/7 from 24/90
1st number: 24/90, 2nd number: 5 5/7
24/90 - 40/7 is -572/105.
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,
40/7 = 40 × 90/7 × 90 = 3600/630 - Subtract the two like fractions:
168/630 - 3600/630 = 168 - 3600/630 = -3432/630 - After reducing the fraction, the answer is -572/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/90-40/7 24/90-80/7 24/90-40/14 72/90-40/7 24/90-40/21 24/90-40/35 24/90-40/49