Question

Find the value of :
(3/5 -2/3)
(-4/5 -1/4)
(-7/5 -8/13)
(-5/7 +1)
(-4 +10/21)​

Answer 1

Answer:

1. 1/15
2. -21/20
3. -131/65
4. 2/7
5. -74/21

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Answer 2

Explanation:

1. 3 by 5 -2 by 3 = -1 by 15
2. -4/5 - 1/4 = -21/20
3. -7/5 - 8/13 = -131/65
4. -5/7 + 1 = 2/7
5. -4 + 10/21 = -74/21
6. (-1/15 -21/20)(-131/65 + 2/7)(-74/21)
7. -1/15 -21/20 = -15/12
8. -131/65 + 2/7 = -787/455
9. -15/12-787/455 = -6825-9444/5460= -16269/5460
10. -16269/5460 - 74/21 = -16269-19240/5460
11. = -35509/5460
12. = -6 whole 2749/5460