Subtract 10/54 from 70/40
1st number: 1 30/40, 2nd number: 10/54
70/40 - 10/54 is 169/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
70/40 = 70 × 27/40 × 27 = 1890/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
10/54 = 10 × 20/54 × 20 = 200/1080 - Subtract the two like fractions:
1890/1080 - 200/1080 = 1890 - 200/1080 = 1690/1080 - After reducing the fraction, the answer is 169/108
- In mixed form: 161/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-20/54 70/80-10/54 70/40-30/54 70/40-50/54 70/40-70/54