Question

answer of this place

Answer 1

Here, is Ur answer ⏬
____________________


$a) \frac{7}{8} + \frac{1}{2} \\ \\ sol. \: \\ \: lcm \: of \: 8 \: and \: 2 \: we \: get \: 8 \\ = > \frac{1 \times 7 + 4 \times 1}{8} = \frac{7 + 4}{8} = \frac{11}{8} \\ = > \frac{11}{8} \: is \: \: a \: answer.$
____________________


$b) \: \frac{2}{5} + \frac{ - 3}{10} \\ \\ sol. \\ = \: lcm \: \: of \: 5 \: and \: 10 \: is \: 10 \\ = > \frac{2 \times 2 + 1 \times ( - 3)}{10} = \frac{4 + ( - 3)}{10} \\ = > \frac{1}{10} \\ \\ here \: 10 \: is \: the \: answer.$
____________________


$c) \: \frac{ - 7}{9} + \frac{ - 4}{27} \\ \\ sol. \\ lcm \: of \: \: 9 \: and \: 27 \: is \: 27 \\ = > \frac{3 \times ( - 7) + 1 \times ( - 4)}{27} = \frac{( - 21) + ( - 4)}{27} \\ \\ = > \frac{25}{27} \: is \: the \: answer.$
____________________


$d). \: \frac{2}{3} + \frac{1}{9} \\ \\ sol. \\ = lcm \: of \: 3 \: and \: 9 \: is \: 9 \\ = > \frac{3 \times 2 + 1 \times 1}{9} = \frac{6 + 1}{9} = \frac{7}{9} \\ \\ so \: \: here \: \frac{7}{9} \: is \: the \: answer.$
____________________


$e). \: \frac{ - 6}{20} + \frac{ - 4}{5} \\ \\ sol. \\ lcm \: of \: 20 \: and \: 5 \: is \: 20. \\ = > \frac{1 \times ( - 6) + 4 \times ( - 4)}{20} = \frac{( - 6) + ( - 4)}{20} \\ = > \frac{10}{20} = 2 \\ \\ so \: the \: anwer \: \: is \: \: 2.$
___________________


$f). \: \frac{ - 3}{4} + \frac{18}{20} \\ \\ sol. \\ lcm \: \: of \: 4 \: and \: 20 \: is \: \: 20 \\ = > \frac{5 \times ( - 3) + 1 \times 18}{20} = \frac{( - 15) + 18}{20} \\ = > \frac{ - 3}{20} \\ \\ so \: the \: \: answer \: is \: \frac{ - 3}{20}$
Hope it's helpful for you....☺☺