Add 28/7 and 36/40
1st number: 4 0/7, 2nd number: 36/40
28/7 + 36/40 is 49/10.
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,
28/7 = 28 × 40/7 × 40 = 1120/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
36/40 = 36 × 7/40 × 7 = 252/280 - Add the two like fractions:
1120/280 + 252/280 = 1120 + 252/280 = 1372/280 - 1372/280 simplified gives 49/10
- So, 28/7 + 36/40 = 49/10
In mixed form: 49/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+36/40 28/7+72/40 28/14+36/40 28/7+36/80 84/7+36/40 28/21+36/40 28/35+36/40 28/49+36/40