Add 40/5 and 90/7
1st number: 8 0/5, 2nd number: 12 6/7
40/5 + 90/7 is 146/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
40/5 = 40 × 7/5 × 7 = 280/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
90/7 = 90 × 5/7 × 5 = 450/35 - Add the two like fractions:
280/35 + 450/35 = 280 + 450/35 = 730/35 - 730/35 simplified gives 146/7
- So, 40/5 + 90/7 = 146/7
In mixed form: 206/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+90/7 40/10+90/7 40/5+90/14 40/15+90/7 40/5+90/21 40/25+90/7 40/5+90/35 40/35+90/7 40/5+90/49