Subtract 15/9 from 24/70
1st number: 24/70, 2nd number: 1 6/9
24/70 - 15/9 is -139/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
24/70 = 24 × 9/70 × 9 = 216/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
15/9 = 15 × 70/9 × 70 = 1050/630 - Subtract the two like fractions:
216/630 - 1050/630 = 216 - 1050/630 = -834/630 - After reducing the fraction, the answer is -139/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/70-15/9 24/70-30/9 24/70-15/18 72/70-15/9 24/70-45/9 24/70-15/27 24/70-75/9 24/70-15/45 24/70-15/63