Question

Add 5/3-2/15



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Answer 1

Answer:

Add: 2/

3

+ 3/

5

= 2 · 5/

3 · 5

+ 3 · 3/

5 · 3

= 10/

15

+ 9/

15

= 10 + 9/

15

= 19/

15

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(3, 5) = 15. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 3 × 5 = 15. In the next intermediate step, the fraction result cannot be further simplified by canceling.

In words - two thirds plus three fifths = nineteen fifteenths.