Question

21. The standard form of 3/4 + 5/6 + {7-12} is
​

Answer 1

Answer:

-41/12 = -3.41

Step-by-step explanation:

$\frac{3}{4} +\frac{5}{6} +(7-12)\\\\\frac{3}{4} +\frac{5}{6} -5\\\\Taking LCM,\\\\\frac{3(3)+2(5)-12(5)}{12} \\\\\frac{9+10-60}{12} \\\\\frac{19-60}{12} \\\\\frac{-41}{12} \\\\-3.41$