Use a model and show as a mixed number when possible. i will give brainliest to who answers first(:
a. 3/5-2/5=?
b. 7.9-3/9=?
c. 5/8+7/8=?
d. 7/9+1/9+4/9=?

A = 1/5, B = 4/9 or something else if you meant 7/9, C = 1 and 4/8 or 1.5 or 1 and 1/2 all mean the same, D = 1 and 1/3 or 1.33333 or 1 and 3/9

Step-by-step explanation:

Since each question shows a fraction that shares the same denominator simply add the numerators

you need to show us the graph.

step-by-step explanation:

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90