Question

simplify - 22/15 - 9/10 - 13/20 + 1​

Answer 1

Answer:

$\frac{22}{15} - \frac{9}{10} - \frac{13}{20} + 1 \\ \\ = \frac{22}{15} - \frac{9}{10} - \frac{13}{20} + \frac{1}{1} \\ \\ = lcm = 5 \times 2 \times 2 \times 3 = 10 \times 6 = 60 \\ \\ = \frac{88}{60} - \frac{54}{60} - \frac{39}{60} + \frac{60}{60} \\ \\ = \frac{88}{60} + \frac{60}{60} - \frac{54}{60} - \frac{39}{60} \\ \\ = \frac{148}{60} - \frac{93}{60} \\ \\ = \frac{55}{60}$