Add 30/18 and 84/49
1st number: 1 12/18, 2nd number: 1 35/49
30/18 + 84/49 is 71/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
30/18 = 30 × 49/18 × 49 = 1470/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
84/49 = 84 × 18/49 × 18 = 1512/882 - Add the two like fractions:
1470/882 + 1512/882 = 1470 + 1512/882 = 2982/882 - 2982/882 simplified gives 71/21
- So, 30/18 + 84/49 = 71/21
In mixed form: 38/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+84/49 30/36+84/49 30/18+84/98 90/18+84/49 30/54+84/49 30/90+84/49