Л) -2 2/5 - (-3 3/8-2 1/4) М) -3,15-(-4 1/2 + 3 3/4)

Question

Л) -2 2/5 - (-3 3/8-2 1/4)

М) -3,15-(-4 1/2 + 3 3/4)

Answer 1

-2 2/5 - (-3 3/8 - 2 1/4) = -12/5 + 27/8 + 9/4 = -96/40 + 135/40 + 90/40 = 
= 129/40 = 3  9/40
-3,15 - (-4 1/2 + 3 3/4) = -3,15 + 4,5 - 3,75 =  -2,4