Subtract 30/50 from 60/70
60/70 - 30/50 is 9/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
60/70 = 60 × 5/70 × 5 = 300/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
30/50 = 30 × 7/50 × 7 = 210/350 - Subtract the two like fractions:
300/350 - 210/350 = 300 - 210/350 = 90/350 - After reducing the fraction, the answer is 9/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70-60/50 60/70-90/50