Răspuns :
introducem intregii si e 17/8×21/4.
21/4×2 si e 42/8.
17/8×42/8.
42÷2=21.
17/2×21/8.
8÷2=4.
17/1×21/4=357/4=89 intregi si 1/4
2)7/2×17/5.
7/2×5=35/10.
17/5×2=34/10.
35/10×34/10.
35÷5=7.
34÷2=17.
7/10×17/10=119/10=11 intregi si 9/10
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