Add 84/42 and 40/72, Solve 2 0/42 + 40/72 as a fraction

Add 84/42 and 40/72

1^st number: 2 0/42, 2^nd number: 40/72

84/42 + 40/72 is 23/9.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 42 × 12 = 504,
84/42 = 84 × 12/42 × 12 = 1008/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
40/72 = 40 × 7/72 × 7 = 280/504
Add the two like fractions:
1008/504 + 280/504 = 1008 + 280/504 = 1288/504
1288/504 simplified gives 23/9
So, 84/42 + 40/72 = 23/9
In mixed form: 25/9

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