21.25

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are 2 numbers to the right of the decimal point, place the decimal number over 102 (100). Next, add the whole number to the left of the decimal.

2125100

Reduce the fractional part of the mixed number.

2114

A mixed number is an addition of its whole and fractional parts.

21+14

Add 21 and 14.

To write 21 as a fraction with a common denominator, multiply by 44.

21⋅44+14

Combine 21 and 44.

21⋅44+14

Combine the numerators over the common denominator.

21⋅4+14

Simplify the numerator.

Multiply 21 by 4.

84+14

Add 84 and 1.

854

854

854

854

Convert to a Fraction 21.25