Subtract 6/84 from 42/10
1st number: 4 2/10, 2nd number: 6/84
42/10 - 6/84 is 289/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
42/10 = 42 × 42/10 × 42 = 1764/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
6/84 = 6 × 5/84 × 5 = 30/420 - Subtract the two like fractions:
1764/420 - 30/420 = 1764 - 30/420 = 1734/420 - After reducing the fraction, the answer is 289/70
- In mixed form: 49/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-6/84 42/10-12/84 42/20-6/84 42/10-18/84 42/30-6/84 42/10-30/84 42/50-6/84 42/10-42/84 42/70-6/84