Add 1/21 and 40/5
1st number: 1/21, 2nd number: 8 0/5
1/21 + 40/5 is 169/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
1/21 = 1 × 5/21 × 5 = 5/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
40/5 = 40 × 21/5 × 21 = 840/105 - Add the two like fractions:
5/105 + 840/105 = 5 + 840/105 = 845/105 - 845/105 simplified gives 169/21
- So, 1/21 + 40/5 = 169/21
In mixed form: 81/21
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