← ArithmeticArithmetic 049 (generated) — Fractions of lengths and clever calculatingArithmeticPracticeMediumYour answera)b)Enter only the number. Use a point or comma for decimals.Check answerReveal solutionStuck? Show me one stepRelated exercisesSimilarArithmetic 011 (generated) — Common factorArithmetic 025 (generated) — Make a hundredArithmetic 019 (generated) — Halve and doubleArithmetic 072 — ZAP 2026, Exercise 1: Calculating cleverly and finding the variable