Subtract 30/45 from 70/12
1st number: 5 10/12, 2nd number: 30/45
70/12 - 30/45 is 31/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
70/12 = 70 × 15/12 × 15 = 1050/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
30/45 = 30 × 4/45 × 4 = 120/180 - Subtract the two like fractions:
1050/180 - 120/180 = 1050 - 120/180 = 930/180 - After reducing the fraction, the answer is 31/6
- In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12-60/45 70/24-30/45 70/12-30/90 70/12-90/45 70/36-30/45 70/60-30/45 70/84-30/45