Add 18/80 and 45/10
1st number: 18/80, 2nd number: 4 5/10
18/80 + 45/10 is 189/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
45/10 = 45 × 8/10 × 8 = 360/80 - Add the two like fractions:
18/80 + 360/80 = 18 + 360/80 = 378/80 - 378/80 simplified gives 189/40
- So, 18/80 + 45/10 = 189/40
In mixed form: 429/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+45/10 18/80+90/10 18/80+45/20 54/80+45/10 18/80+45/30 90/80+45/10 18/80+45/50 18/80+45/70