Question

2/3 + 0,8 =; 2,71 - 3/5; 1/6-0,4 плиз помогите

Answer 1

2/3 + 0,8= 2/3+ 8/10= 2/3 + 4/5= 10/15 + 12/15= 22/15= 1 7/15
2,71- 3/5= 2,71 - 6/10= 2,71- 0,6= 2,11
1/6 - 0,4= 1/6 - 4/10= 1/6 - 2/5 = 5/30 - 12/30= - 7/30