Answer:
(-31)/72
Step-by-step explanation:
Simplify the following:
4/9 - 7/8
Put 4/9 - 7/8 over the common denominator 72. 4/9 - 7/8 = (8×4)/72 + (9 (-7))/72:
(8×4)/72 + (9 (-7))/72
8×4 = 32:
32/72 + (9 (-7))/72
9 (-7) = -63:
32/72 + (-63)/72
32/72 - 63/72 = (32 - 63)/72:
(32 - 63)/72
32 - 63 = -(63 - 32):
(-(63 - 32))/72
| 6 | 3
- | 3 | 2
| 3 | 1:
Answer: (-31)/72
