Add 63/70 and 27/60
63/70 + 27/60 is 27/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
63/70 = 63 × 6/70 × 6 = 378/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420 - Add the two like fractions:
378/420 + 189/420 = 378 + 189/420 = 567/420 - 567/420 simplified gives 27/20
- So, 63/70 + 27/60 = 27/20
In mixed form: 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70+54/60 63/70+81/60