Add 36/72 and 75/21, Solve 36/72 + 3 12/21 as a fraction

Add 36/72 and 75/21

1^st number: 36/72, 2^nd number: 3 12/21

36/72 + 75/21 is 57/14.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504
Likewise, for the 2nd fraction, since 21 × 24 = 504,
75/21 = 75 × 24/21 × 24 = 1800/504
Add the two like fractions:
252/504 + 1800/504 = 252 + 1800/504 = 2052/504
2052/504 simplified gives 57/14
So, 36/72 + 75/21 = 57/14
In mixed form: 41/14

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