a)12 i 1/4 - 1/4:3=12 i 1/4 - 1/12=12/4 - 1/12=36/12 - 1/12=35/12=2 i 11/12
b)(12 i 2/3 - 2:2/3):5=(12 i2/3 - 3):5=9 i 2/3 :5=18/3:5/1=18/3 * 1/5=18/15=1 i 3/15
c)(11 i 3/4 + 1/4:3):2=(11 i 3/4 + 1/12):2=(33/4+1/2):2=(33/4+2/4):2=35/4:2=35/4 * 1/2=35/8=4 i 3/8
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a)12 i 1/4 - 1/4:3=12 i 1/4 - 1/12=12/4 - 1/12=36/12 - 1/12=35/12=2 i 11/12
b)(12 i 2/3 - 2:2/3):5=(12 i2/3 - 3):5=9 i 2/3 :5=18/3:5/1=18/3 * 1/5=18/15=1 i 3/15
c)(11 i 3/4 + 1/4:3):2=(11 i 3/4 + 1/12):2=(33/4+1/2):2=(33/4+2/4):2=35/4:2=35/4 * 1/2=35/8=4 i 3/8