Add 18/56 and 5/15
18/56 + 5/15 is 55/84.
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,
5/15 = 5 × 56/15 × 56 = 280/840 - Add the two like fractions:
270/840 + 280/840 = 270 + 280/840 = 550/840 - 550/840 simplified gives 55/84
- So, 18/56 + 5/15 = 55/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+5/15 18/56+10/15 18/56+5/30 54/56+5/15 18/56+5/45 90/56+5/15 18/56+25/15 18/56+5/75 18/56+35/15