Problem:

MTH.G4.2  Compare and order fractions, represent equivalent forms
MTH.G4.5  Solve problems involving addition and subtraction of fractions   and decimals;  determine common multiples and factors
MTH.G5.5  Find the sum, difference . . . of two numbers expressed as   decimals through   thousandths; create and solve problems   involving decimals
MTH.G5.6  Solve addition and subtraction of fractions and mixed numbers
MTH.G6.6  Estimate and solve problems involving fraction operations
MTH.G6.7  Solve problems involving operations with decimals