Subtract 24/70 from 18/45
18/45 - 24/70 is 2/35.
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,
18/45 = 18 × 14/45 × 14 = 252/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
24/70 = 24 × 9/70 × 9 = 216/630 - Subtract the two like fractions:
252/630 - 216/630 = 252 - 216/630 = 36/630 - After reducing the fraction, the answer is 2/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45-24/70 18/45-48/70 18/90-24/70 54/45-24/70 18/45-72/70 90/45-24/70