Add 45/30 and 18/27
1st number: 1 15/30, 2nd number: 18/27
45/30 + 18/27 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
45/30 = 45 × 9/30 × 9 = 405/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
18/27 = 18 × 10/27 × 10 = 180/270 - Add the two like fractions:
405/270 + 180/270 = 405 + 180/270 = 585/270 - 585/270 simplified gives 13/6
- So, 45/30 + 18/27 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+18/27 45/30+36/27 45/60+18/27 45/30+18/54 45/30+54/27 45/90+18/27 45/30+18/81 45/30+90/27