Subtract 50/12 from 84/70
1st number: 1 14/70, 2nd number: 4 2/12
84/70 - 50/12 is -89/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
84/70 = 84 × 6/70 × 6 = 504/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
50/12 = 50 × 35/12 × 35 = 1750/420 - Subtract the two like fractions:
504/420 - 1750/420 = 504 - 1750/420 = -1246/420 - After reducing the fraction, the answer is -89/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-50/24 84/70-50/36 84/70-50/60 84/70-50/84