Add 36/7 and 28/40
1st number: 5 1/7, 2nd number: 28/40
36/7 + 28/40 is 409/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
36/7 = 36 × 40/7 × 40 = 1440/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
28/40 = 28 × 7/40 × 7 = 196/280 - Add the two like fractions:
1440/280 + 196/280 = 1440 + 196/280 = 1636/280 - 1636/280 simplified gives 409/70
- So, 36/7 + 28/40 = 409/70
In mixed form: 559/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7+28/40 36/7+56/40 36/14+28/40 36/7+28/80 36/7+84/40 36/21+28/40 36/35+28/40 36/49+28/40