Add 18/35 and 36/40
18/35 + 36/40 is 99/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
18/35 = 18 × 8/35 × 8 = 144/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
36/40 = 36 × 7/40 × 7 = 252/280 - Add the two like fractions:
144/280 + 252/280 = 144 + 252/280 = 396/280 - 396/280 simplified gives 99/70
- So, 18/35 + 36/40 = 99/70
In mixed form: 129/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/35+36/40 18/35+72/40 18/70+36/40 18/35+36/80 54/35+36/40 90/35+36/40