Subtract 12/30 from 48/70
48/70 - 12/30 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
48/70 = 48 × 3/70 × 3 = 144/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210 - Subtract the two like fractions:
144/210 - 84/210 = 144 - 84/210 = 60/210 - After reducing the fraction, the answer is 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/70-12/30 48/70-24/30 48/70-12/60 48/70-36/30 48/70-12/90 48/70-60/30 48/70-84/30