What is two filths plus one eighth

Answer: 21/40

Step-by-step explanation:

25+18=? The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD (2/5, 1/8) = 40

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(25*88) + (18*55) = ?

Complete the multiplication and the equation becomes

1640+540=?

The two fractions now have like denominators so you can add the numerators.

Then:

16+540=2140

This fraction cannot be reduced.

Therefore:

25+18=2140