Add 27/60 and 20/28
27/60 + 20/28 is 163/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
20/28 = 20 × 15/28 × 15 = 300/420 - Add the two like fractions:
189/420 + 300/420 = 189 + 300/420 = 489/420 - 489/420 simplified gives 163/140
- So, 27/60 + 20/28 = 163/140
In mixed form: 123/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60+20/28 27/60+40/28 27/60+20/56 81/60+20/28 27/60+60/28 27/60+20/84