Add 9/10 and 27/28
9/10 + 27/28 is 261/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
9/10 = 9 × 14/10 × 14 = 126/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
27/28 = 27 × 5/28 × 5 = 135/140 - Add the two like fractions:
126/140 + 135/140 = 126 + 135/140 = 261/140 - So, 9/10 + 27/28 = 261/140
In mixed form: 1121/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10+27/28 9/10+54/28 9/20+27/28 9/10+27/56 27/10+27/28 9/10+81/28 9/30+27/28 9/10+27/84 45/10+27/28 9/50+27/28 63/10+27/28 9/70+27/28