Add 18/63 and 10/12
18/63 + 10/12 is 47/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
10/12 = 10 × 21/12 × 21 = 210/252 - Add the two like fractions:
72/252 + 210/252 = 72 + 210/252 = 282/252 - 282/252 simplified gives 47/42
- So, 18/63 + 10/12 = 47/42
In mixed form: 15/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+10/12 18/63+20/12 18/63+10/24 54/63+10/12 18/63+30/12 18/63+10/36 90/63+10/12 18/63+50/12 18/63+10/60 18/63+70/12 18/63+10/84