Math Problem Statement
(SARESP) Na casa de Mariana o gasto diário de água com descargas correspondia a 2 5 5 2 da capacidade da caixa d'água. Com a troca por descargas mais econômicas, esse consumo passou a ser de 1 4 4 1 da capacidade da mesma caixa d'água. Logo a fração da caixa d'água economizada com essa troca foi de:
1 5 5 1
2 4 4 2
1 20 20 1
3 20 20 3
Solution
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Fractions
Subtraction of Fractions
Least Common Denominator
Formulas
Difference of fractions: a/b - c/d = (ad - bc) / bd
Least common denominator (LCD) for fractions
Theorems
Least common denominator theorem: LCD of two fractions is the smallest number divisible by both denominators
Suitable Grade Level
Grades 6-8
Related Recommendation
Resolvendo divisão proporcional: Everaldo e Benê dividindo 360 figurinhas
Convert 0.45 into a Fraction and Simplify
Adding and Subtracting Fractions, GCF - Wood Trim, Pancake Recipe, Chocolate Bars
Solve Mixed Fraction Problem: Water Usage Calculation for Jeanette's Laundry
Subtracting Fractions and Decimals: ⅘ - 0.75