Answer:
Step-by-step explanation:
Length of wire that Mika has H = 3 7/16 cm = 55/16 cm
length of wire that she needs N = 2 5/8 cm = 21/8 cm
Total length of wire she has (H) is the sum of total length that she need (N) and the length that she cuts (C). This can be expressed as;
H = N+C
Length of wire she needs N = H-C
Substitute the given values into the expression;
N = 55/16 - 21/8
Find the LCM
N = (55-42)/16
N = 13/16
Therefore she needs thirteenth-sixteenth cm wire