Add 27/28 and 72/63
1st number: 27/28, 2nd number: 1 9/63
27/28 + 72/63 is 59/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
27/28 = 27 × 9/28 × 9 = 243/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Add the two like fractions:
243/252 + 288/252 = 243 + 288/252 = 531/252 - 531/252 simplified gives 59/28
- So, 27/28 + 72/63 = 59/28
In mixed form: 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+72/63 27/56+72/63 81/28+72/63 27/84+72/63