Add 98/21 and 63/18
1st number: 4 14/21, 2nd number: 3 9/18
98/21 + 63/18 is 49/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
98/21 = 98 × 6/21 × 6 = 588/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126 - Add the two like fractions:
588/126 + 441/126 = 588 + 441/126 = 1029/126 - 1029/126 simplified gives 49/6
- So, 98/21 + 63/18 = 49/6
In mixed form: 81/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42+63/18 98/21+63/36 98/63+63/18 98/21+63/54 98/21+63/90