Subtract 45/24 from 84/70
1st number: 1 14/70, 2nd number: 1 21/24
84/70 - 45/24 is -27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
84/70 = 84 × 12/70 × 12 = 1008/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
45/24 = 45 × 35/24 × 35 = 1575/840 - Subtract the two like fractions:
1008/840 - 1575/840 = 1008 - 1575/840 = -567/840 - After reducing the fraction, the answer is -27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-90/24 84/70-45/48 84/70-45/72