Add 27/90 and 30/84
27/90 + 30/84 is 23/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
27/90 = 27 × 14/90 × 14 = 378/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
30/84 = 30 × 15/84 × 15 = 450/1260 - Add the two like fractions:
378/1260 + 450/1260 = 378 + 450/1260 = 828/1260 - 828/1260 simplified gives 23/35
- So, 27/90 + 30/84 = 23/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90+30/84 27/90+60/84 81/90+30/84 27/90+90/84