Odpowiedzi

2009-11-26T16:35:15+01:00
2½ × 5⅓= ⁵/₂ × ¹⁶/₃ =13⅓

3¾ × 4⅕= ¹⁵/₄ × ²¹/₅=15³/₄
2009-11-26T16:35:18+01:00
5/2 ×16/3 = 80/6 = 13 2/6
b) 15/4 × 21/5 = 315/20 = 63/4 = 15 3/4
2009-11-26T16:35:42+01:00
5/2*16/3=80/48=40/24=20/12=5/4=1¼

3¾ × 4⅕= 15/4*21/5=315/20=15¾