Add 50/21 and 40/75, Solve 2 8/21 + 40/75 as a fraction

Add 50/21 and 40/75

1^st number: 2 8/21, 2^nd number: 40/75

50/21 + 40/75 is 102/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 21 × 25 = 525,
50/21 = 50 × 25/21 × 25 = 1250/525
Likewise, for the 2nd fraction, since 75 × 7 = 525,
40/75 = 40 × 7/75 × 7 = 280/525
Add the two like fractions:
1250/525 + 280/525 = 1250 + 280/525 = 1530/525
1530/525 simplified gives 102/35
So, 50/21 + 40/75 = 102/35
In mixed form: 232/35

MathStep (Works offline)

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