Add 35/21 and 60/54, Solve 1 14/21 + 1 6/54 as a fraction

Add 35/21 and 60/54

1^st number: 1 14/21, 2^nd number: 1 6/54

35/21 + 60/54 is 25/9.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 21 × 18 = 378,
35/21 = 35 × 18/21 × 18 = 630/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
60/54 = 60 × 7/54 × 7 = 420/378
Add the two like fractions:
630/378 + 420/378 = 630 + 420/378 = 1050/378
1050/378 simplified gives 25/9
So, 35/21 + 60/54 = 25/9
In mixed form: 27/9

MathStep (Works offline)

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