Subtract 15/70 from 72/24
1st number: 3 0/24, 2nd number: 15/70
72/24 - 15/70 is 39/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
72/24 = 72 × 35/24 × 35 = 2520/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
15/70 = 15 × 12/70 × 12 = 180/840 - Subtract the two like fractions:
2520/840 - 180/840 = 2520 - 180/840 = 2340/840 - After reducing the fraction, the answer is 39/14
- In mixed form: 211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/24-30/70 72/48-15/70 72/24-45/70 72/24-75/70