Add 98/6 and 15/21
1st number: 16 2/6, 2nd number: 15/21
98/6 + 15/21 is 358/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
98/6 = 98 × 7/6 × 7 = 686/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Add the two like fractions:
686/42 + 30/42 = 686 + 30/42 = 716/42 - 716/42 simplified gives 358/21
- So, 98/6 + 15/21 = 358/21
In mixed form: 171/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/6+30/21 98/12+15/21 98/6+15/42 98/6+45/21 98/18+15/21 98/6+15/63 98/6+75/21 98/30+15/21 98/42+15/21