Answer: 1. -7 -8 multiplied by -7 equals 56
Step-by-step explanation:
9 : 2 = 18 : 4
As: 9 x 2 : 2 x 2 = 18 : 4
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36 : 8 = 18 : 4
As: 18 x 2 : 4 x 2 = 36 : 8
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72 : 16 = 18 : 4
As: 18 x 4 : 4 x 4 = 72 : 16
12,795: 13,000; 3,845: 4,000
6/7 and 4/7 is already simplified. There are no numbers you can divide it by. =)