Subtract 12/24 from 3/70
3/70 - 12/24 is -16/35.
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,
3/70 = 3 × 12/70 × 12 = 36/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
12/24 = 12 × 35/24 × 35 = 420/840 - Subtract the two like fractions:
36/840 - 420/840 = 36 - 420/840 = -384/840 - After reducing the fraction, the answer is -16/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70-12/24 3/70-12/48 9/70-12/24 3/70-36/24 3/70-12/72 15/70-12/24 3/70-60/24 21/70-12/24 3/70-84/24