Subtract 90/70 from 24/75
1st number: 24/75, 2nd number: 1 20/70
24/75 - 90/70 is -169/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
24/75 = 24 × 14/75 × 14 = 336/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
90/70 = 90 × 15/70 × 15 = 1350/1050 - Subtract the two like fractions:
336/1050 - 1350/1050 = 336 - 1350/1050 = -1014/1050 - After reducing the fraction, the answer is -169/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/75-90/70 72/75-90/70