Question

Sa se calculeze:
3/5•15-4/4=
7/6-1/6-1/3=6/5-1/5-1/3=

Answer 1

3/5×15–4/4=3×15/5–4/4=3×3–4/4=9–4/4=(36–4)/4=32/4=8
7/6–1/6–1/3=6/6–1/3=1–1/3=(3–1)/3=2/3
6/5–1/5–1/3=5/5–1/3=1–1/3=(3–1)/3=2/3