Add 30/84 and 45/6
1st number: 30/84, 2nd number: 7 3/6
30/84 + 45/6 is 55/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
45/6 = 45 × 14/6 × 14 = 630/84 - Add the two like fractions:
30/84 + 630/84 = 30 + 630/84 = 660/84 - 660/84 simplified gives 55/7
- So, 30/84 + 45/6 = 55/7
In mixed form: 76/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+45/6 30/84+90/6 30/84+45/12 90/84+45/6 30/84+45/18 30/84+45/30 30/84+45/42