Add 54/45 and 10/20
1st number: 1 9/45, 2nd number: 10/20
54/45 + 10/20 is 17/10.
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,
54/45 = 54 × 4/45 × 4 = 216/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
10/20 = 10 × 9/20 × 9 = 90/180 - Add the two like fractions:
216/180 + 90/180 = 216 + 90/180 = 306/180 - 306/180 simplified gives 17/10
- So, 54/45 + 10/20 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90+10/20 54/45+10/40 54/45+30/20 54/45+10/60 54/45+50/20 54/45+70/20