Add 15/3 and 56/21
1st number: 5 0/3, 2nd number: 2 14/21
15/3 + 56/21 is 23/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
15/3 = 15 × 7/3 × 7 = 105/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
56/21 = 56 × 1/21 × 1 = 56/21 - Add the two like fractions:
105/21 + 56/21 = 105 + 56/21 = 161/21 - 161/21 simplified gives 23/3
- So, 15/3 + 56/21 = 23/3
In mixed form: 72/3
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