Subtract 84/70 from 12/50
1st number: 12/50, 2nd number: 1 14/70
12/50 - 84/70 is -24/25.
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,
84/70 = 84 × 5/70 × 5 = 420/350 - Subtract the two like fractions:
84/350 - 420/350 = 84 - 420/350 = -336/350 - After reducing the fraction, the answer is -24/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/50-84/70 36/50-84/70 60/50-84/70 84/50-84/70