Subtract 4/70 from 24/42
24/42 - 4/70 is 18/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
24/42 = 24 × 5/42 × 5 = 120/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
4/70 = 4 × 3/70 × 3 = 12/210 - Subtract the two like fractions:
120/210 - 12/210 = 120 - 12/210 = 108/210 - After reducing the fraction, the answer is 18/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/42-4/70 24/42-8/70 24/84-4/70 72/42-4/70 24/42-12/70 24/42-20/70 24/42-28/70