Add 70/14 and 42/54, Solve 5 0/14 + 42/54 as a fraction

Add 70/14 and 42/54

1^st number: 5 0/14, 2^nd number: 42/54

70/14 + 42/54 is 52/9.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 14 × 27 = 378,
70/14 = 70 × 27/14 × 27 = 1890/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378
Add the two like fractions:
1890/378 + 294/378 = 1890 + 294/378 = 2184/378
2184/378 simplified gives 52/9
So, 70/14 + 42/54 = 52/9
In mixed form: 57/9

MathStep (Works offline)

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