Add 45/54 and 90/35
1st number: 45/54, 2nd number: 2 20/35
45/54 + 90/35 is 143/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 35 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
45/54 = 45 × 35/54 × 35 = 1575/1890 - Likewise, for the 2nd fraction, since 35 × 54 = 1890,
90/35 = 90 × 54/35 × 54 = 4860/1890 - Add the two like fractions:
1575/1890 + 4860/1890 = 1575 + 4860/1890 = 6435/1890 - 6435/1890 simplified gives 143/42
- So, 45/54 + 90/35 = 143/42
In mixed form: 317/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+90/35 45/54+90/70