Martha bought 20 5⁄6 yards of fabric to make curtains. she only used 16 7⁄9 yards of the fabric. how much fabric remained?

All you really need to do is subtract the two numbers.

First, find a common denominator of the two fractions.

5/6 * 9/9 = 45/56

7/9 * 6/6 = 42/56

20 45/56 - 16 42/56 = 4 1/18

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3