Question

SIMPLIFY 7/10+1/4-1/5=

Answer 1

Answer:

3/4

Step-by-step explanation:

Q = $\frac{7}{10} +\frac{1}{4} -\frac{1}{5}$      

{the smallest common multiple of 10, 4 and 5 is 5×2×2 = 20 (denominator)}

Q =$\frac{7×2}{10×2} +\frac{1×5}{4×5} -\frac{1×4}{5×4}$

=$\frac{14}{20} +\frac{5}{20} -\frac{4}{20}$

=$\frac{14+5-4}{20}$

=$\frac{15}{20}$

=$\frac{3×5}{4×5}$

=$\frac{3}{4}$