Write the fraction to their lowest term 45/62, 7/22, 75/120

Answer 1

45 = 3^2 x 5, 62 = 2x31 in prime factored form. 45/62 can't be reduced further

7/22 7 is prime, 22=2x11. 7/22 can't be reduced further

75/120, 75=5^2 x 3, 120 = 3x2^3 x 5. 5 and 3 are common factors, so 15 is a common factor

divide 75 and 120 by 15 to get 5/8

75/120 = 5/8

IF you wanted to add all 3 fractions: 45/62 + 7/22 + 75/120= 45/62 + 7/22 + 5/8

find the least common denominator: 62=31x2, 22=2x11, 8 = 2^3. the least common denominator is 2728 =

31x11x8, then 45/62 = 45(44)/62(44) = 1980/2726

7/22 = 7(124)/22(124)= 868/2726

5/8 = 5(341)/8(341)= 1705/2726

now add up the numerators to get 4553/2726= about 1.68

45/62 + 7/22 + 5/8 = about

.73+.32 + .63 = 1.68

but the exact sum is 4553/2726 which can't be reduced further