Add 18/84 and 30/32
18/84 + 30/32 is 129/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 84 × 8 = 672,
18/84 = 18 × 8/84 × 8 = 144/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
30/32 = 30 × 21/32 × 21 = 630/672 - Add the two like fractions:
144/672 + 630/672 = 144 + 630/672 = 774/672 - 774/672 simplified gives 129/112
- So, 18/84 + 30/32 = 129/112
In mixed form: 117/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+30/32 18/84+60/32 18/84+30/64 54/84+30/32 18/84+90/32 18/84+30/96 90/84+30/32