Add 63/81 and 60/40, Solve 63/81 + 1 20/40 as a fraction

Add 63/81 and 60/40

1^st number: 63/81, 2^nd number: 1 20/40

63/81 + 60/40 is 41/18.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240

Next, find the equivalent fraction of both fractional numbers with denominator 3240
For the 1st fraction, since 81 × 40 = 3240,
63/81 = 63 × 40/81 × 40 = 2520/3240
Likewise, for the 2nd fraction, since 40 × 81 = 3240,
60/40 = 60 × 81/40 × 81 = 4860/3240
Add the two like fractions:
2520/3240 + 4860/3240 = 2520 + 4860/3240 = 7380/3240
7380/3240 simplified gives 41/18
So, 63/81 + 60/40 = 41/18
In mixed form: 25/18

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