Add 30/56 and 40/84
30/56 + 40/84 is 85/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
30/56 = 30 × 3/56 × 3 = 90/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
40/84 = 40 × 2/84 × 2 = 80/168 - Add the two like fractions:
90/168 + 80/168 = 90 + 80/168 = 170/168 - 170/168 simplified gives 85/84
- So, 30/56 + 40/84 = 85/84
In mixed form: 11/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56+40/84 30/56+80/84 90/56+40/84