Subtract 15/70 from 12/50
12/50 - 15/70 is 9/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
12/50 = 12 × 7/50 × 7 = 84/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
15/70 = 15 × 5/70 × 5 = 75/350 - Subtract the two like fractions:
84/350 - 75/350 = 84 - 75/350 = 9/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/50-15/70 12/50-30/70 36/50-15/70 12/50-45/70 60/50-15/70 12/50-75/70 84/50-15/70