Add 12/18 and 15/56
12/18 + 15/56 is 157/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
12/18 = 12 × 28/18 × 28 = 336/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
15/56 = 15 × 9/56 × 9 = 135/504 - Add the two like fractions:
336/504 + 135/504 = 336 + 135/504 = 471/504 - 471/504 simplified gives 157/168
- So, 12/18 + 15/56 = 157/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+15/56 12/18+30/56 12/36+15/56 36/18+15/56 12/18+45/56 12/54+15/56 60/18+15/56 12/18+75/56 12/90+15/56 84/18+15/56