Subtract 70/18 from 24/90
1st number: 24/90, 2nd number: 3 16/18
24/90 - 70/18 is -163/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
24/90 = 24 × 1/90 × 1 = 24/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
70/18 = 70 × 5/18 × 5 = 350/90 - Subtract the two like fractions:
24/90 - 350/90 = 24 - 350/90 = -326/90 - After reducing the fraction, the answer is -163/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/90-70/18 24/90-70/36 72/90-70/18 24/90-70/54 24/90-70/90