Add 27/21 and 16/5
1st number: 1 6/21, 2nd number: 3 1/5
27/21 + 16/5 is 157/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
27/21 = 27 × 5/21 × 5 = 135/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
16/5 = 16 × 21/5 × 21 = 336/105 - Add the two like fractions:
135/105 + 336/105 = 135 + 336/105 = 471/105 - 471/105 simplified gives 157/35
- So, 27/21 + 16/5 = 157/35
In mixed form: 417/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+16/5 27/21+32/5 27/42+16/5 27/21+16/10 81/21+16/5 27/21+48/5 27/63+16/5 27/21+16/15 27/21+80/5 27/21+16/25 27/21+16/35