Subtract 75/70 from 45/24
1st number: 1 21/24, 2nd number: 1 5/70
45/24 - 75/70 is 45/56.
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,
45/24 = 45 × 35/24 × 35 = 1575/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
75/70 = 75 × 12/70 × 12 = 900/840 - Subtract the two like fractions:
1575/840 - 900/840 = 1575 - 900/840 = 675/840 - After reducing the fraction, the answer is 45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24-75/70 45/48-75/70 45/72-75/70