Решите ! 1)1(1/7) - 23/49= 2)33/49 : 22/147= 3)29/10 - вопрос №604072711172349233492214732910212117 от DOGY228 21.05.2023 18:07

Question

Математика: Решите ! 1)1(1/7) - 23/49= 2)33/49 : 22/147= 3)29/10 * 2(1/2)= 1(1/7) - целая часть!

DOGY228 · Answer

1)1(1/7) - 23/49= 8/7 - 23/49 = 56/49 - 23/49 = 33/49
2) 33/49 : 22/147 = (33 * 147)/(49 * 22) = (3 * 3)/( 1 * 2) = 4,5
3) 29/10 * 2(1/2) = 29/10 * 5/2 = (29 * 5)/(10 * 2) = (29 * 1)/(2 * 2) = 29/4 = 7,25.