Subtract 84/12 from 30/10
1st number: 3 0/10, 2nd number: 7 0/12
30/10 - 84/12 is -4/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
30/10 = 30 × 6/10 × 6 = 180/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Subtract the two like fractions:
180/60 - 420/60 = 180 - 420/60 = -240/60 - After reducing the fraction, the answer is -4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-84/12 30/20-84/12 30/10-84/24 90/10-84/12 30/10-84/36 30/50-84/12 30/10-84/60 30/70-84/12