Решите : 8 3/17x 5 1/4+ 3 14/17x 5 1/4=? 3 4/13x15 - вопрос №203609083175143141751434131534134132341 от likamikanumberone 08.04.2020 02:29

Question

Математика: Решите : 8 3/17x 5 1/4+ 3 14/17x 5 1/4=? 3 4/13x15 3/41- 3 4/13x2 3/41=?

likamikanumberone · Answer

8 3/17x 5 1/4+ 3 14/17x 5 1/4=139*17*21/4+65/17*21/4=21/4*(139/17+65/17)=21/4*204/17=21*3=633 4/13x15 3/41- 3 4/13x2 3/41=43/13*(618/41-85/41)=43/13*533/41=43...