It can be: 3 times (7-2+8) = 39
No, it is not possible to make 25 using the numbers 2, 3, 7, and 9 with basic arithmetic operations.
8+3/7 - 2+6/7 = 59/7 - 20/7 = 39/7 = 5 and 4/7
44 = 22 x 11 63 = 32 x 7
7 divided by 13 times 2 divided by 3 is 14/39
It is 3/7 of 91 = 39
26: 2, 13 27: 3 39: 3, 13 56: 2, 7 400: 2, 5
3-3 3-3 2-3 3-3 4-2 5-2
Since there are no common factors between 28 [2 2 7] and 39 [3 13], the LCM is just the product, 28*39=1092 ■
factors of 63 =7*9 or 7*3*3 factors of 78=2*39, or 2*3*13 the GCF is 3
The factors of 39 are: 1 3 13 39 The prime factors are: 3 and 13
6.5 = 13/2; 13/2 x 3/7 = 39/14 = 2.786 or Two and eleven fourteenths
Factors of 78:1, 2, 3, 6, 13, 26, 39, 78