puputmariana12
1.a. 1/2+1/3-1/4=6/12+4/12-3/12=7/12 b. 1/2+1/3x1/4=1/2+1/12=6/12+1/12=7/12 2. a. 2+2/5-3/10x9=2+2/5-27/10=20/10+4/10-27/10=-3/10 b.2x2/5-3/10÷1/9=4/5-3/10x9=4/5-27/10=8/10-27/10=-19/10 c. 2x5/2-3/10x1/9=5-3/90=5-1/30=150/30-1/30=149/30 d.2+2/5x3/10x9=2+6/50x9=2+54/50=100/50+54/50=46/50=23/25 e.2-2/5x10/3x1/9=2-20/15x1/9=2-20/135=270/135-20/135=250/135
b. 1/2+1/3x1/4=1/2+1/12=6/12+1/12=7/12
2. a. 2+2/5-3/10x9=2+2/5-27/10=20/10+4/10-27/10=-3/10 b.2x2/5-3/10÷1/9=4/5-3/10x9=4/5-27/10=8/10-27/10=-19/10
c. 2x5/2-3/10x1/9=5-3/90=5-1/30=150/30-1/30=149/30
d.2+2/5x3/10x9=2+6/50x9=2+54/50=100/50+54/50=46/50=23/25
e.2-2/5x10/3x1/9=2-20/15x1/9=2-20/135=270/135-20/135=250/135