Add 27/8 and 90/7
1st number: 3 3/8, 2nd number: 12 6/7
27/8 + 90/7 is 909/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
27/8 = 27 × 7/8 × 7 = 189/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
90/7 = 90 × 8/7 × 8 = 720/56 - Add the two like fractions:
189/56 + 720/56 = 189 + 720/56 = 909/56 - So, 27/8 + 90/7 = 909/56
In mixed form: 1613/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+90/7 27/16+90/7 27/8+90/14 81/8+90/7 27/24+90/7 27/8+90/21 27/40+90/7 27/8+90/35 27/56+90/7 27/8+90/49