Two pieces of length 5 6/7 m and 2 6/7 m
are cut off from a rope 20 m long. What
is the length of the remaining rope?
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Step-by-step explanation:
let the length of remaining rope is x
then x+5 6/7 +2 6/7 = 20
x+41/7 +20/7 = 20
x + 61/7 = 20
x = 20-61/7
x = 140-61/7
x = 79/7
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