Question

martin is pasting equally sized pieces of square coloured paper onto a board measuring 72 cm by 90 cm. of all square pieces are to be used ,and the board is to be completely covered,find the largest possible length of the side of each square coloured paper.​

Answer 1

Answer:

answer is 18 as the board needs to be fully covered and so the biggest number which divides both the numbers completely and so is the answer