Add 35/21 and 1/5, Solve 1 14/21 + 1/5 as a fraction

Add 35/21 and 1/5

1^st number: 1 14/21, 2^nd number: 1/5

35/21 + 1/5 is 28/15.

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,
35/21 = 35 × 5/21 × 5 = 175/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
1/5 = 1 × 21/5 × 21 = 21/105
Add the two like fractions:
175/105 + 21/105 = 175 + 21/105 = 196/105
196/105 simplified gives 28/15
So, 35/21 + 1/5 = 28/15
In mixed form: 113/15

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad