Add 27/7 and 90/40
1st number: 3 6/7, 2nd number: 2 10/40
27/7 + 90/40 is 171/28.
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,
27/7 = 27 × 40/7 × 40 = 1080/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Add the two like fractions:
1080/280 + 630/280 = 1080 + 630/280 = 1710/280 - 1710/280 simplified gives 171/28
- So, 27/7 + 90/40 = 171/28
In mixed form: 63/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+90/40 27/14+90/40 27/7+90/80 81/7+90/40 27/21+90/40 27/35+90/40 27/49+90/40