Add 8/45 and 36/20
1st number: 8/45, 2nd number: 1 16/20
8/45 + 36/20 is 89/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
36/20 = 36 × 9/20 × 9 = 324/180 - Add the two like fractions:
32/180 + 324/180 = 32 + 324/180 = 356/180 - 356/180 simplified gives 89/45
- So, 8/45 + 36/20 = 89/45
In mixed form: 144/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45+36/20 8/45+72/20 8/90+36/20 8/45+36/40 24/45+36/20 8/45+36/60 40/45+36/20 56/45+36/20