Add 4/40 and 72/9, Solve 4/40 + 8 0/9 as a fraction

Add 4/40 and 72/9

1^st number: 4/40, 2^nd number: 8 0/9

4/40 + 72/9 is 81/10.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 40 × 9 = 360,
4/40 = 4 × 9/40 × 9 = 36/360
Likewise, for the 2nd fraction, since 9 × 40 = 360,
72/9 = 72 × 40/9 × 40 = 2880/360
Add the two like fractions:
36/360 + 2880/360 = 36 + 2880/360 = 2916/360
2916/360 simplified gives 81/10
So, 4/40 + 72/9 = 81/10
In mixed form: 81/10

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