Subtract 24/70 from 5/45
5/45 - 24/70 is -73/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
5/45 = 5 × 14/45 × 14 = 70/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
24/70 = 24 × 9/70 × 9 = 216/630 - Subtract the two like fractions:
70/630 - 216/630 = 70 - 216/630 = -146/630 - After reducing the fraction, the answer is -73/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45-24/70 5/45-48/70 5/90-24/70 15/45-24/70 5/45-72/70 25/45-24/70 35/45-24/70