Subtract 30/15 from 12/4
1st number: 3 0/4, 2nd number: 2 0/15
12/4 - 30/15 is 1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
12/4 = 12 × 15/4 × 15 = 180/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60 - Subtract the two like fractions:
180/60 - 120/60 = 180 - 120/60 = 60/60 - After reducing the fraction, the answer is 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/4-30/15 12/4-60/15 12/8-30/15 36/4-30/15 12/4-90/15 12/4-30/45 60/4-30/15 12/20-30/15 12/4-30/75 84/4-30/15 12/28-30/15