Add 8/10 and 20/45
8/10 + 20/45 is 56/45.
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,
8/10 = 8 × 9/10 × 9 = 72/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
72/90 + 40/90 = 72 + 40/90 = 112/90 - 112/90 simplified gives 56/45
- So, 8/10 + 20/45 = 56/45
In mixed form: 111/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10+20/45 8/10+40/45 8/20+20/45 8/10+20/90 24/10+20/45 8/10+60/45 8/30+20/45 40/10+20/45 8/50+20/45 56/10+20/45 8/70+20/45