Сократите 81*17-15*81 ------------------ 81*17+81*4

Question

Сократите
81*17-15*81
------------------
81*17+81*4

Comments

2)81*17-15*81/81*17+81*41)81*17=13772)15*81=12153)1215/81=154)15*17=2555)81*4=3246)1377-255=11227)1122+324=1446

Answer 1

(81*17 - 15*81)/(81*17 + 81*14) = 81(17-15)/81(17 + 4) = (17-15)/(17 + 4) = 2/21