Add 84/40 and 12/84, Solve 2 4/40 + 12/84 as a fraction

Add 84/40 and 12/84

1^st number: 2 4/40, 2^nd number: 12/84

84/40 + 12/84 is 157/70.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 40 × 21 = 840,
84/40 = 84 × 21/40 × 21 = 1764/840
Likewise, for the 2nd fraction, since 84 × 10 = 840,
12/84 = 12 × 10/84 × 10 = 120/840
Add the two like fractions:
1764/840 + 120/840 = 1764 + 120/840 = 1884/840
1884/840 simplified gives 157/70
So, 84/40 + 12/84 = 157/70
In mixed form: 217/70

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