Question

Convert the decimal fractions into common fractions.
(1)$27.5$
(2) $0.007$
(3) $90.8$
(4) $39.15$
(5) $3.12$
(6) $70.400$

Answer 1

A decimal can be written as a fraction by multiplying in the denominator with multiple of $10$ as many times as the number of decimal values after decimal and the numerator written as it is without taking decimal point.
(1) $27.5=\frac{275}{10}$
(2) $0.007=\frac{7}{1000}$
(3) $90.8=\frac{908}{10}$
(4) $39.15=\frac{3915}{100}$
(5) $3.12=\frac{312}{100}$
(6) $70.400=70.4=\frac{704}{10}$