Question

Work out 1 7/12 + 13/20 in its lowest terms

Answer 1

Step-by-step explanation:

$= 1 \frac{7}{12} + \frac{13}{20}$

$= \frac{1 \times 12 + 7}{12} + \frac{13}{20}$

$= \frac{19}{12} + \frac{13}{20}$

$= \frac{19}{12} \times \frac{5}{5} + \frac{13}{20} \times \frac{3}{3}$

$= \frac{95}{60} + \frac{39}{60}$

$= \frac{90 + 39}{60}$

$= \frac{129}{60}$

$= \frac{43}{20}$

$= 2 \frac{3}{20}$

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