Question

Oblicz : liczba w " < " oznacza całości

1/6 + 2/5
8/9 - 5/6
<1> 1/5 + 8 1/7
<4> 7/10 - <2> 1/3
<4 >1/5 - 7/10
<6 >1/8 - <2> 3/4
<10> 2/3 - <6> 7/9
<9> 3/8 - <2> 5/6

Answer 1

1/6 + 2/5 = 5/30 + 12/30 = 17/30
8/9 - 5/6 = 16/18 - 15/18 = 1/18
<1> 1/5 + 8 1/7 = 6/5 + 57/7 = 42/35 + 210/35 = 252/35 = 7 7/35
<4> 7/10 - <2> 1/3 = 47/10 - 7/3 = 141/30 - 70/30 = 71/30 = 2 11/30
<4 >1/5 - 7/10 = 21/5 - 7/10 = 42/10 - 7/10 = 35/10 = 3 5/10 = 3 1/2
<6 >1/8 - <2> 3/4 = 49/8 - 11/4 = 49/8 - 22/8 = 27/8 = 3 3/8
<10> 2/3 - <6> 7/9 = 32/3 - 61/9 = 96/9 - 61/9 = 35/9 = 3 8/9
<9> 3/8 - <2> 5/6 = 75/8 - 17/6 = 225/24 - 68/24 = 157/24 = 6 13/24