Subtract 45/35 from 72/4
1st number: 18 0/4, 2nd number: 1 10/35
72/4 - 45/35 is 117/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
72/4 = 72 × 35/4 × 35 = 2520/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
45/35 = 45 × 4/35 × 4 = 180/140 - Subtract the two like fractions:
2520/140 - 180/140 = 2520 - 180/140 = 2340/140 - After reducing the fraction, the answer is 117/7
- In mixed form: 165/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-90/35 72/8-45/35 72/4-45/70 72/12-45/35 72/20-45/35 72/28-45/35