Add 90/8 and 27/7
1st number: 11 2/8, 2nd number: 3 6/7
90/8 + 27/7 is 423/28.
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,
90/8 = 90 × 7/8 × 7 = 630/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
27/7 = 27 × 8/7 × 8 = 216/56 - Add the two like fractions:
630/56 + 216/56 = 630 + 216/56 = 846/56 - 846/56 simplified gives 423/28
- So, 90/8 + 27/7 = 423/28
In mixed form: 153/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+54/7 90/16+27/7 90/8+27/14 90/8+81/7 90/24+27/7 90/8+27/21 90/40+27/7 90/8+27/35 90/56+27/7 90/8+27/49