Add 5/75 and 70/21, Solve 5/75 + 3 7/21 as a fraction

Add 5/75 and 70/21

1^st number: 5/75, 2^nd number: 3 7/21

5/75 + 70/21 is 17/5.

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

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 75 × 7 = 525,
5/75 = 5 × 7/75 × 7 = 35/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
70/21 = 70 × 25/21 × 25 = 1750/525
Add the two like fractions:
35/525 + 1750/525 = 35 + 1750/525 = 1785/525
1785/525 simplified gives 17/5
So, 5/75 + 70/21 = 17/5
In mixed form: 32/5

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