Add 40/75 and 63/21, Solve 40/75 + 3 0/21 as a fraction

Add 40/75 and 63/21

1^st number: 40/75, 2^nd number: 3 0/21

40/75 + 63/21 is 53/15.

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,
40/75 = 40 × 7/75 × 7 = 280/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
63/21 = 63 × 25/21 × 25 = 1575/525
Add the two like fractions:
280/525 + 1575/525 = 280 + 1575/525 = 1855/525
1855/525 simplified gives 53/15
So, 40/75 + 63/21 = 53/15
In mixed form: 38/15

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