Add 42/9 and 5/70, Solve 4 6/9 + 5/70 as a fraction

Add 42/9 and 5/70

1^st number: 4 6/9, 2^nd number: 5/70

42/9 + 5/70 is 199/42.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
42/9 = 42 × 70/9 × 70 = 2940/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
5/70 = 5 × 9/70 × 9 = 45/630
Add the two like fractions:
2940/630 + 45/630 = 2940 + 45/630 = 2985/630
2985/630 simplified gives 199/42
So, 42/9 + 5/70 = 199/42
In mixed form: 431/42

MathStep (Works offline)

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