Add 5/7 and 90/40
1st number: 5/7, 2nd number: 2 10/40
5/7 + 90/40 is 83/28.
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,
5/7 = 5 × 40/7 × 40 = 200/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Add the two like fractions:
200/280 + 630/280 = 200 + 630/280 = 830/280 - 830/280 simplified gives 83/28
- So, 5/7 + 90/40 = 83/28
In mixed form: 227/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/7+90/40 5/14+90/40 5/7+90/80 15/7+90/40 5/21+90/40 25/7+90/40 5/35+90/40 35/7+90/40 5/49+90/40