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13 and 7/15

16/40 + 15/40 = 31/40

15 and two thirds plus four fifths = one two fiftenth

11 15

9/15 + 5/15 = 14/15

-10/15 - 12/15 = -22/15

It is 19/15 = 1 4/15.

10/3 + 17/5 = 50/15 + 51/15 = 101/15 = 6 and 11/15

no...three sevenths is equal to 15/35 and two fifths is equal to 14/35.

3/15 + 2/5 = 3/5 or 0.6

Eleven- fifths plus four- fifths equals fifteen- fifths, which reduces to three wholes. (11/5+4/5=15/5, or 3/1)

51/85 + 15/85 = 66/85

It is: 112/15 or 7 and 7/15

-1/15

12 7/15

2/5 + 2/15 = 6/15 + 2/15 = 8/15

(3 and 3/5)+(1 and 2/3) = (18/5)+(5/3) = (54/15)+(25/15) = 79/15 = 5 and 4/15

8/15

1/3 plus 2/5 = 11/15

No, two fifths is smaller the three fourths. It would only be 8/20ths while three fourths would be 15/20ths.

12/10 + 15/10 = 27/10

4/5+2/15=12/15+2/15=14/15

2/3 + 2/5 = 1 1/15

1/3 + 3/5 = 5/15 + 9/15 = answer of 14/15

12/15 + 10/15 = 22/15 = 1 and 7/15