Subtract 9/70 from 20/24
20/24 - 9/70 is 74/105.
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,
20/24 = 20 × 35/24 × 35 = 700/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
9/70 = 9 × 12/70 × 12 = 108/840 - Subtract the two like fractions:
700/840 - 108/840 = 700 - 108/840 = 592/840 - After reducing the fraction, the answer is 74/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24-9/70 20/24-18/70 20/48-9/70 60/24-9/70 20/24-27/70 20/72-9/70 20/24-45/70 20/24-63/70