Subtract 18/49 from 42/10
1st number: 4 2/10, 2nd number: 18/49
42/10 - 18/49 is 939/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
42/10 = 42 × 49/10 × 49 = 2058/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
18/49 = 18 × 10/49 × 10 = 180/490 - Subtract the two like fractions:
2058/490 - 180/490 = 2058 - 180/490 = 1878/490 - After reducing the fraction, the answer is 939/245
- In mixed form: 3204/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-18/49 42/10-36/49 42/20-18/49 42/10-18/98 42/10-54/49 42/30-18/49 42/10-90/49 42/50-18/49 42/70-18/49