Subtract 12/4 from 70/30
1st number: 2 10/30, 2nd number: 3 0/4
70/30 - 12/4 is -2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
70/30 = 70 × 2/30 × 2 = 140/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
12/4 = 12 × 15/4 × 15 = 180/60 - Subtract the two like fractions:
140/60 - 180/60 = 140 - 180/60 = -40/60 - After reducing the fraction, the answer is -2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30-24/4 70/60-12/4 70/30-12/8 70/30-36/4 70/90-12/4 70/30-60/4 70/30-12/20 70/30-84/4 70/30-12/28