Add 56/5 and 84/21
1st number: 11 1/5, 2nd number: 4 0/21
56/5 + 84/21 is 76/5.
Steps for adding fractions
- 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,
56/5 = 56 × 21/5 × 21 = 1176/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
84/21 = 84 × 5/21 × 5 = 420/105 - Add the two like fractions:
1176/105 + 420/105 = 1176 + 420/105 = 1596/105 - 1596/105 simplified gives 76/5
- So, 56/5 + 84/21 = 76/5
In mixed form: 151/5
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