Add 8/45 and 54/20
1st number: 8/45, 2nd number: 2 14/20
8/45 + 54/20 is 259/90.
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,
54/20 = 54 × 9/20 × 9 = 486/180 - Add the two like fractions:
32/180 + 486/180 = 32 + 486/180 = 518/180 - 518/180 simplified gives 259/90
- So, 8/45 + 54/20 = 259/90
In mixed form: 279/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45+54/20 8/90+54/20 8/45+54/40 24/45+54/20 8/45+54/60 40/45+54/20 56/45+54/20