Add 18/2 and 84/7
1st number: 9 0/2, 2nd number: 12 0/7
18/2 + 84/7 is 21/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
18/2 = 18 × 7/2 × 7 = 126/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
84/7 = 84 × 2/7 × 2 = 168/14 - Add the two like fractions:
126/14 + 168/14 = 126 + 168/14 = 294/14 - 294/14 simplified gives 21/1
- So, 18/2 + 84/7 = 21/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2+84/7 18/4+84/7 18/2+84/14 54/2+84/7 18/6+84/7 18/2+84/21 90/2+84/7 18/10+84/7 18/2+84/35 18/14+84/7 18/2+84/49