Subtract 6/50 from 21/7
1st number: 3 0/7, 2nd number: 6/50
21/7 - 6/50 is 72/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 7 × 50 = 350,
21/7 = 21 × 50/7 × 50 = 1050/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
6/50 = 6 × 7/50 × 7 = 42/350 - Subtract the two like fractions:
1050/350 - 42/350 = 1050 - 42/350 = 1008/350 - After reducing the fraction, the answer is 72/25
- In mixed form: 222/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/7-6/50 21/7-12/50 21/14-6/50 63/7-6/50 21/7-18/50 21/7-30/50 21/35-6/50 21/7-42/50 21/49-6/50