Add 40/6 and 54/72, Solve 6 4/6 + 54/72 as a fraction

Add 40/6 and 54/72

1^st number: 6 4/6, 2^nd number: 54/72

40/6 + 54/72 is 89/12.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 6 × 12 = 72,
40/6 = 40 × 12/6 × 12 = 480/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
54/72 = 54 × 1/72 × 1 = 54/72
Add the two like fractions:
480/72 + 54/72 = 480 + 54/72 = 534/72
534/72 simplified gives 89/12
So, 40/6 + 54/72 = 89/12
In mixed form: 75/12

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