Add 27/14 and 45/90
1st number: 1 13/14, 2nd number: 45/90
27/14 + 45/90 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
27/14 = 27 × 45/14 × 45 = 1215/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
45/90 = 45 × 7/90 × 7 = 315/630 - Add the two like fractions:
1215/630 + 315/630 = 1215 + 315/630 = 1530/630 - 1530/630 simplified gives 17/7
- So, 27/14 + 45/90 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+45/90 27/28+45/90 81/14+45/90 27/42+45/90 27/70+45/90 27/98+45/90