Answer:
1.) 1/2+3/4= 2/4+3/4= 5/4= 1 ¼
2.) 1 ⅓+ 3 ½=
(1+3=4) + (⅓+½=2/6+3/6=5/6) = 4 5/6
3.) 2/5+2/4= 8/20+10/20= 18/20=9/10
4.) 6½+ 1 5/6= (6+1=7) + (½+5/6=3/6+5/6=8/6=1⅓)=7+1⅓= 8⅓
5.) ½+¼+4/6=6/12+3/12+8/12= 17/12= 1 5/12
6.) 5/6-1/4=10/12-3/12=7/12
7.) 8 4/5-3¼= (8-3=5) +(4/5-¼= 16/20-5/20=11/20)=5+11/20=5 11/20
8.)2/3-2/5=10/15-6/15=4/15
9.) 8 2/5-3 ⅔= 42/5-11/3=126/15-55/15=71/15=
4 11/15
10.) 4¾-1½= (4-1=3)+(¾-½=¾-2/4=¼)=3¼
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Answers & Comments
Answer:
1.) 1/2+3/4= 2/4+3/4= 5/4= 1 ¼
2.) 1 ⅓+ 3 ½=
(1+3=4) + (⅓+½=2/6+3/6=5/6) = 4 5/6
3.) 2/5+2/4= 8/20+10/20= 18/20=9/10
4.) 6½+ 1 5/6= (6+1=7) + (½+5/6=3/6+5/6=8/6=1⅓)=7+1⅓= 8⅓
5.) ½+¼+4/6=6/12+3/12+8/12= 17/12= 1 5/12
6.) 5/6-1/4=10/12-3/12=7/12
7.) 8 4/5-3¼= (8-3=5) +(4/5-¼= 16/20-5/20=11/20)=5+11/20=5 11/20
8.)2/3-2/5=10/15-6/15=4/15
9.) 8 2/5-3 ⅔= 42/5-11/3=126/15-55/15=71/15=
4 11/15
10.) 4¾-1½= (4-1=3)+(¾-½=¾-2/4=¼)=3¼