Add 18/56 and 27/20
1st number: 18/56, 2nd number: 1 7/20
18/56 + 27/20 is 117/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
18/56 = 18 × 5/56 × 5 = 90/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
27/20 = 27 × 14/20 × 14 = 378/280 - Add the two like fractions:
90/280 + 378/280 = 90 + 378/280 = 468/280 - 468/280 simplified gives 117/70
- So, 18/56 + 27/20 = 117/70
In mixed form: 147/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+27/20 18/56+54/20 18/56+27/40 54/56+27/20 18/56+81/20 18/56+27/60 90/56+27/20