Add 12/15 and 18/56
12/15 + 18/56 is 157/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
12/15 = 12 × 56/15 × 56 = 672/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
18/56 = 18 × 15/56 × 15 = 270/840 - Add the two like fractions:
672/840 + 270/840 = 672 + 270/840 = 942/840 - 942/840 simplified gives 157/140
- So, 12/15 + 18/56 = 157/140
In mixed form: 117/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15+18/56 12/15+36/56 12/30+18/56 36/15+18/56 12/15+54/56 12/45+18/56 60/15+18/56 12/15+90/56 12/75+18/56 84/15+18/56