Add 18/54 and 40/35
1st number: 18/54, 2nd number: 1 5/35
18/54 + 40/35 is 31/21.
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,
18/54 = 18 × 35/54 × 35 = 630/1890 - Likewise, for the 2nd fraction, since 35 × 54 = 1890,
40/35 = 40 × 54/35 × 54 = 2160/1890 - Add the two like fractions:
630/1890 + 2160/1890 = 630 + 2160/1890 = 2790/1890 - 2790/1890 simplified gives 31/21
- So, 18/54 + 40/35 = 31/21
In mixed form: 110/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/54+40/35 18/54+80/35 18/54+40/70 90/54+40/35