Add 10/3 and 5/21
1st number: 3 1/3, 2nd number: 5/21
103 + 521 is 257.
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,
103 = 10 × 73 × 7 = 7021 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
521 = 5 × 121 × 1 = 521 - Add the two like fractions:
7021 + 521 = 70 + 521 = 7521 - 75/21 simplified gives 257
- So, 10/3 + 5/21 = 25/7
In mixed form: 347
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