2(57)+1(14)=(2+57+(1+14)) =(2+1)+(57)+(14)=3+(2028)+(728) [lcm(7,4)=28]=3+2728=3(2728)

"Find 2(57)+1(14)" was answered by our experts

Clifland

Answered question

2021-03-06

Find

2 (\frac{5}{7}) + 1 (\frac{1}{4})

Nathaniel Kramer

Skilled2021-03-07Added 78 answers

$2 (\frac{5}{7}) + 1 (\frac{1}{4}) = (2 + \frac{5}{7} + (1 + \frac{1}{4}))$

$= (2 + 1) + (\frac{5}{7}) + (\frac{1}{4}) = 3 + (\frac{20}{28}) + (\frac{7}{28})$

$[l c m (7, 4) = 28] = 3 + \frac{27}{28} = 3 (\frac{27}{28})$

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