Subtract 84/12 from 30/50
1st number: 30/50, 2nd number: 7 0/12
30/50 - 84/12 is -32/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
30/50 = 30 × 6/50 × 6 = 180/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
84/12 = 84 × 25/12 × 25 = 2100/300 - Subtract the two like fractions:
180/300 - 2100/300 = 180 - 2100/300 = -1920/300 - After reducing the fraction, the answer is -32/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/50-84/12 30/50-84/24 90/50-84/12 30/50-84/36 30/50-84/60