Subtract 42/36 from 70/30
1st number: 2 10/30, 2nd number: 1 6/36
70/30 - 42/36 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
70/30 = 70 × 6/30 × 6 = 420/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Subtract the two like fractions:
420/180 - 210/180 = 420 - 210/180 = 210/180 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30-84/36 70/60-42/36 70/30-42/72 70/90-42/36