4 1/5 + 2 5/6 = ?
6 1/6
6 1/30
7 1/4
7 1/30
2 answers:
Answer:
7 1/30
Step-by-step explanation:
4 1/5 + 2 5/6
Get a common denominator of 30
4 1/4 = 4 1/5*6/6 = 4 6/30
2 5/6 *5/5 = 2 25/30
4 6/30 + 2 25/30
6 31/30
Rewriting
6 30/30 + 1/30
6 + 1 + 1/30
7 1/30
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1 kid = 2 hands
9 kids = 9x2 = 18 hands
2:3:4
Shortest is clearly 2
(2×7.5):(3×7.5):(4×7.5)
So the sides are 15 , 22.5 and 30
Perimeter = 15 + 22.5 + 30
Perimeter = 67.5
Answer:
a
Step-by-step explanation: