Add 21/75 and 63/42, Solve 21/75 + 1 21/42 as a fraction

Add 21/75 and 63/42

1^st number: 21/75, 2^nd number: 1 21/42

21/75 + 63/42 is 89/50.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 75 × 14 = 1050,
21/75 = 21 × 14/75 × 14 = 294/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
63/42 = 63 × 25/42 × 25 = 1575/1050
Add the two like fractions:
294/1050 + 1575/1050 = 294 + 1575/1050 = 1869/1050
1869/1050 simplified gives 89/50
So, 21/75 + 63/42 = 89/50
In mixed form: 139/50

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