Subtract 30/12 from 50/70
1st number: 50/70, 2nd number: 2 6/12
50/70 - 30/12 is -25/14.
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,
50/70 = 50 × 6/70 × 6 = 300/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
30/12 = 30 × 35/12 × 35 = 1050/420 - Subtract the two like fractions:
300/420 - 1050/420 = 300 - 1050/420 = -750/420 - After reducing the fraction, the answer is -25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70-60/12 50/70-30/24 50/70-90/12 50/70-30/36 50/70-30/60 50/70-30/84