Add 40/54 and 28/35
40/54 + 28/35 is 208/135.
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,
40/54 = 40 × 35/54 × 35 = 1400/1890 - Likewise, for the 2nd fraction, since 35 × 54 = 1890,
28/35 = 28 × 54/35 × 54 = 1512/1890 - Add the two like fractions:
1400/1890 + 1512/1890 = 1400 + 1512/1890 = 2912/1890 - 2912/1890 simplified gives 208/135
- So, 40/54 + 28/35 = 208/135
In mixed form: 173/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/54+28/35 40/54+56/35 40/54+28/70 40/54+84/35