Add 4/70 and 42/27, Solve 4/70 + 1 15/27 as a fraction

Add 4/70 and 42/27

1^st number: 4/70, 2^nd number: 1 15/27

4/70 + 42/27 is 508/315.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890

Next, find the equivalent fraction of both fractional numbers with denominator 1890
For the 1st fraction, since 70 × 27 = 1890,
4/70 = 4 × 27/70 × 27 = 108/1890
Likewise, for the 2nd fraction, since 27 × 70 = 1890,
42/27 = 42 × 70/27 × 70 = 2940/1890
Add the two like fractions:
108/1890 + 2940/1890 = 108 + 2940/1890 = 3048/1890
3048/1890 simplified gives 508/315
So, 4/70 + 42/27 = 508/315
In mixed form: 1193/315

MathStep (Works offline)

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