Add 40/5 and 1/21, Solve 8 0/5 + 1/21 as a fraction

Add 40/5 and 1/21

1^st number: 8 0/5, 2^nd number: 1/21

40/5 + 1/21 is 169/21.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
40/5 = 40 × 21/5 × 21 = 840/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
1/21 = 1 × 5/21 × 5 = 5/105
Add the two like fractions:
840/105 + 5/105 = 840 + 5/105 = 845/105
845/105 simplified gives 169/21
So, 40/5 + 1/21 = 169/21
In mixed form: 81/21

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