Add 80/75 and 10/18, Solve 1 5/75 + 10/18 as a fraction

Add 80/75 and 10/18

1^st number: 1 5/75, 2^nd number: 10/18

80/75 + 10/18 is 73/45.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 75 × 6 = 450,
80/75 = 80 × 6/75 × 6 = 480/450
Likewise, for the 2nd fraction, since 18 × 25 = 450,
10/18 = 10 × 25/18 × 25 = 250/450
Add the two like fractions:
480/450 + 250/450 = 480 + 250/450 = 730/450
730/450 simplified gives 73/45
So, 80/75 + 10/18 = 73/45
In mixed form: 128/45

MathStep (Works offline)

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