Add 15/42 and 98/10
1st number: 15/42, 2nd number: 9 8/10
15/42 + 98/10 is 711/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
98/10 = 98 × 21/10 × 21 = 2058/210 - Add the two like fractions:
75/210 + 2058/210 = 75 + 2058/210 = 2133/210 - 2133/210 simplified gives 711/70
- So, 15/42 + 98/10 = 711/70
In mixed form: 1011/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42+98/10 15/84+98/10 15/42+98/20 45/42+98/10 15/42+98/30 75/42+98/10 15/42+98/50 15/42+98/70