The answer is 42cm. the area of the rectangle in the middle is 30cm. the area of the triangle on the left is 6cm because the formula is 1/2Bh. B=2 and h=6, so 12/2=6. there are 2 of the triangles however, so you add 30+12=42
For dividing fractions you should always use the KCF method: Keep Change Flip 6/10 divided by 12/7 Kcf method: 6/10*7/12= 42/120 42/120 in simplest form will be 7/20 So the answer is A
