Question

1 1/4 : 3/2 - 7/12 va rog

Answer 1

1 intreg si 1/4 = ( 1 x 4 + 1)/4 = 5/4

5/4 : 3/2 - 7/12=
= 5/4 × 2/3 - 7/12=          → am simplificat pe 2 cu 4 = 1/2
=5/ (2 ×3) - 7/12=
= 5/6 - 7/12=                    → aflu cmmmc al nr.(6,12)= 12
= (2×5) / ( 2×6) - 7/12=   → amplific prima fractie cu 2
= 10/12 - 7/12=               → aducand fractiile la acelasi numitor 12
= 3/12=                           → simplific fractia cu 3
= 1/4

Answer 2

1 intreg 1/4= 5/4 
5/4:3/2-7/12=
5/4*2/3-7/12= (4 si 2 se reduc printr-un 2)
5/2*1/3-7/12=
5/6-7/12= 
10-7/12=3/12=1/4 ( am simplificat fractia cu 3 )