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2/3 + (-5/7) .........
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2/3 + (-5/7)



.........

User Piva
by
4.8k points

2 Answers

3 votes

Answer:

-1/21

Explanation:

2/3 + (-5/7)

2/3 - 5/7

Lcm: 21

(2×7 - 5×3)/21

(14 - 15)/21

-1/21

User Nathan Ernst
by
4.4k points
0 votes

Answer:

-1/21

Explanation:

2/3 + -5/7

Get a common denominator of 21

2/3 *7/7 = 14/21

-5/7*3/3 = -15/21

14/21 - 15/21 = -1/21

User Henri Hietala
by
4.5k points
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