Subtract 50/12 from 30/35
1st number: 30/35, 2nd number: 4 2/12
30/35 - 50/12 is -139/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
30/35 = 30 × 12/35 × 12 = 360/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
50/12 = 50 × 35/12 × 35 = 1750/420 - Subtract the two like fractions:
360/420 - 1750/420 = 360 - 1750/420 = -1390/420 - After reducing the fraction, the answer is -139/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35-50/12 30/70-50/12 30/35-50/24 90/35-50/12 30/35-50/36 30/35-50/60 30/35-50/84