(2/7+5/21): 1 4/7 (8/11+3 22): 5/11 1 7/12: (3/8+5/12) - вопрос №491639927521147811322511171238512173671259 от s0nnka 25.07.2022 16:14

Question

Математика: (2/7+5/21): 1 4/7 (8/11+3 22): 5/11 1 7/12: (3/8+5/12) 17/36: (7/12-5/9) (3/14+5/7): 3 5/7 19/24: (3/16+5/24) рушите это дроби,буду рад !

s0nnka · Answer

(2/7+5/21):1 4/7=(6/21+5/21):1 4/7=11/21:1 4/7=11/21:(1*7+4)/7=11/21:11/7=11/21*7/11=1/3

(8/11+3/22):5/11=(16/22+3/22):5/11=19/22:5/11=19/22*11/5=19/10=1 9/10

1 7/12:(3/8+5/12)=(1*12+7)/12:(9/24+10/24)=19/12:19/24=19/12*24/19=2

17/36:(7/12-5/9)=17/36:(21/36-20/36)=17/36:1/36=17/36*36/1=17

(3/14+5/7):3 5/7=(3/14+10/14):(3*7+5)/7=13/14:26/7=13/14*7/26=1/4

19/24:(3/16+5/24)=19/24:(9/48+10/48)=19/24:19/48=19/24*48/19=2