Step-by-step explanation:
2/5 + 6 3/7 2 2/3 = 437/105 = 4 17/105 congruent 4.1619048
2 4/5 + 7 1/2 - 3/4 = 171/20 = 8 11/20 =8.55
[tex]1. \: 2/5 + \: 6 \: 3/7 - \: 2 \: 2/3 = \\ = 2/5 + \frac{45}{7} - 2 \frac{2}{3} \\ \\ = 2/5 + \frac{45}{7} - {8}{3} \\ \\ = \frac{2}{5} + \frac{45}{7} - \frac{8}{3} \\ \\ = \frac{435}{105} \\ \\ = 4 \frac{17}{105} [/tex]
[tex]2. \: 2 \: 4/5 + 7 \: 1/2 - 1 \: 3/4 = \\ =10 \frac{3}{10} - 1 \frac{3}{4} \\ \\ = 8 \frac{11}{20} [/tex]
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Answers & Comments
Step-by-step explanation:
2/5 + 6 3/7 2 2/3 = 437/105 = 4 17/105 congruent 4.1619048
2 4/5 + 7 1/2 - 3/4 = 171/20 = 8 11/20 =8.55
Verified answer
[tex]1. \: 2/5 + \: 6 \: 3/7 - \: 2 \: 2/3 = \\ = 2/5 + \frac{45}{7} - 2 \frac{2}{3} \\ \\ = 2/5 + \frac{45}{7} - {8}{3} \\ \\ = \frac{2}{5} + \frac{45}{7} - \frac{8}{3} \\ \\ = \frac{435}{105} \\ \\ = 4 \frac{17}{105} [/tex]
[tex]2. \: 2 \: 4/5 + 7 \: 1/2 - 1 \: 3/4 = \\ =10 \frac{3}{10} - 1 \frac{3}{4} \\ \\ = 8 \frac{11}{20} [/tex]
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