Add 30/84 and 90/56
1st number: 30/84, 2nd number: 1 34/56
30/84 + 90/56 is 55/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
30/84 = 30 × 2/84 × 2 = 60/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
90/56 = 90 × 3/56 × 3 = 270/168 - Add the two like fractions:
60/168 + 270/168 = 60 + 270/168 = 330/168 - 330/168 simplified gives 55/28
- So, 30/84 + 90/56 = 55/28
In mixed form: 127/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+90/56 90/84+90/56