Mathematics: 7th grade maths Step by step explain each question! Thanks!

The answer is C. I hope this helps. ...

7th grade maths Step by step explain each question!

larissaday33

05.10.2021

${ \tt{ \frac{5}{2y} + \frac{3}{10} }} \\ \\ = { \tt{ \frac{50 + 6y}{20y} }}$

$\frac{4m}{9} + \frac{11}{12} \\ \\ = \frac{16m + 33}{36}$

3. Answer

$\frac{4}{b} - \frac{1}{ 3} \\ \\ = \frac{12 - b}{3b}$

$- \frac{2r}{15} - \frac{2}{3} \\ \\ = \frac{ - 2r - 10}{15}$

$\frac{m}{8} - \frac{11}{m} \\ \\ = \frac{ {m}^{2} - 88}{8m}$

$\frac{15}{16y} + \frac{5}{12} \\ \\ = \frac{45 - 20y}{48y}$

$\frac{2}{9w} + \frac{3}{3z} \\ \\ = \frac{6z + 9w}{3wz}$

$\frac{2}{3p} - \frac{1}{3p} \\ \\ = \frac{1}{3p}$

$\frac{15}{2x} - \frac{4}{7y} \\ \\ = \frac{105y - 8x}{14xy}$

10.

$\frac{14}{3d} - \frac{1}{2d} \\ \\ = \frac{25}{6 {d}^{2} }$

11.

$\frac{11f}{20} + \frac{2}{15} \\ \\ = \frac{33f + 8}{60}$

12.

$\frac{2}{(w + 1)} + \frac{1}{4} \\ \\ = \frac{9 + w}{4w + 4}$

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