Subtract 40/70 from 40/24
1st number: 1 16/24, 2nd number: 40/70
40/24 - 40/70 is 23/21.
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,
40/24 = 40 × 35/24 × 35 = 1400/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
40/70 = 40 × 12/70 × 12 = 480/840 - Subtract the two like fractions:
1400/840 - 480/840 = 1400 - 480/840 = 920/840 - After reducing the fraction, the answer is 23/21
- In mixed form: 12/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/24-40/70 40/24-80/70 40/48-40/70 40/72-40/70