Add 20/8 and 3/45
1st number: 2 4/8, 2nd number: 3/45
20/8 + 3/45 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
20/8 = 20 × 45/8 × 45 = 900/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
3/45 = 3 × 8/45 × 8 = 24/360 - Add the two like fractions:
900/360 + 24/360 = 900 + 24/360 = 924/360 - 924/360 simplified gives 77/30
- So, 20/8 + 3/45 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+3/45 20/8+6/45 20/16+3/45 20/8+3/90 60/8+3/45 20/8+9/45 20/24+3/45 20/8+15/45 20/40+3/45 20/8+21/45 20/56+3/45