Question

C - całości Ułamki zwykłe: b) 1c 1/8 + 2c 10/11 c) 3c 8/9 + 2c 5/6 d) 1c 5/8 + 2c 11/14 e) 4c 3/4 - 1c 1/6 f) 3c 2/3 - 1c 1/5 g) 2c 3/10 - 1c 1/15 h) 6c 17/18 - 1c 5/12 i) 3c 1/4 - 2c 5/8 j) 4c 1/6 - 2c 3/8 k) 7c 3/5 - 4c 1/7 l) 3c 7/30 - 1c 5/12 Proszę o rozwiązanie tego zadania z góry dziękuję

Answer 1

b) 1c 1/8 + 2c 10/11  = 9/8 + 32/11 = 99/88 + 256/88 = 355/88 = 4c 3/88

c) 3c 8/9 + 2c 5/6 = 35/9 + 17/6 = 70/18 + 51/18 = 121/18 = 6c 13/18

d) 1c 5/8 + 2c 11/14  = 13/8 + 39/14 = 91/56 + 156/56 = 247/56 = 4c 23/56

e) 4c 3/4 - 1c 1/6 = 19/4 - 7/6 = 57/12 - 14/12 = 43/12 = 3c 7/12

f) 3c 2/3 - 1c 1/5  = 11/3 - 6/5 = 55/15 - 18/15 = 37/15 = 2c 7/15

g) 2c 3/10 - 1c 1/15 = 23/10 - 16/15 = 69/30 - 32/30 = 37/30 = 1c 7/30

h) 6c 17/18 - 1c 5/12 = 125/18 - 17/12 = 250/36 - 51/36 = 199/36 =
= 5c 19/36

i) 3c 1/4 - 2c 5/8  = 13/4 - 21/8 = 26/8 - 21/8 = 5/8

j) 4c 1/6 - 2c 3/8  = 25/6 - 19/8 = 100/24 - 57/24 = 43/24 = 1c 19/24

k) 7c 3/5 - 4c 1/7 = 38/5 - 29/7 = 266/35 - 145/35 = 121/35 = 3c 16/35

l) 3c 7/30 - 1c 5/12 = 97/30 - 17/12 = 194/60 - 85/60 = 109/60 = 1c 49/60