Add 27/10 and 20/45
1st number: 2 7/10, 2nd number: 20/45
27/10 + 20/45 is 283/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
27/10 = 27 × 9/10 × 9 = 243/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
243/90 + 40/90 = 243 + 40/90 = 283/90 - So, 27/10 + 20/45 = 283/90
In mixed form: 313/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+20/45 27/10+40/45 27/20+20/45 27/10+20/90 81/10+20/45 27/10+60/45 27/30+20/45 27/50+20/45 27/70+20/45