Add 18/56 and 18/15
1st number: 18/56, 2nd number: 1 3/15
18/56 + 18/15 is 213/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
18/56 = 18 × 15/56 × 15 = 270/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
18/15 = 18 × 56/15 × 56 = 1008/840 - Add the two like fractions:
270/840 + 1008/840 = 270 + 1008/840 = 1278/840 - 1278/840 simplified gives 213/140
- So, 18/56 + 18/15 = 213/140
In mixed form: 173/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+18/15 18/56+36/15 18/56+18/30 54/56+18/15 18/56+54/15 18/56+18/45 90/56+18/15 18/56+90/15 18/56+18/75