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Step-by-step explanation:
17)
18)
19)
20)
21)
22)
23)
24)
Answer:
17)
\frac{5}{15} + \frac{4}{30} = \frac{1}{3} + \frac{2}{15}
15
5
+
30
4
=
3
1
+
15
2
= \frac{5 + 2}{15} = \frac{7}{15}=
15
5+2
=
15
7
18)
\frac{2}{8} + \frac{8}{24} = \frac{1}{4} + \frac{1}{3}
8
2
+
24
8
=
4
1
+
3
1
= \frac{3 + 4}{12} = \frac{7}{12}=
12
3+4
=
12
7
19)
\frac{2}{15} + \frac{2}{10} = \frac{2}{15} + \frac{1}{5}
15
2
+
10
2
=
15
2
+
5
1
\frac{2 + 3}{15} = \frac{5}{15} = \frac{1}{3}
15
2+3
=
15
5
=
3
1
20)
\frac{5}{14} + \frac{1}{8} = \frac{40 + 14}{112}
14
5
+
8
1
=
112
40+14
= \frac{54}{112} = \frac{27}{56}=
112
54
=
56
27
21)
\frac{3}{4} + \frac{1}{6} = \frac{18 + 4}{24}
4
3
+
6
1
=
24
18+4
= \frac{22}{24} = \frac{11}{12}=
24
22
=
12
11
22)
\frac{2}{8} + \frac{3}{10} = \frac{20 + 24}{80}
8
2
+
10
3
=
80
20+24
= \frac{44}{80} = \frac{11}{20}=
80
44
=
20
11
23)
\frac{5}{12} + \frac{4}{10} + \frac{2}{5} = \frac{25 + 24 + 24}{60}
12
5
+
10
4
+
5
2
=
60
25+24+24
= \frac{73}{60}=
60
73
24)
\frac{2}{3} + \frac{1}{5} + \frac{1}{2} = \frac{20 + 6 + 15}{30}
3
2
+
5
1
+
2
1
=
30
20+6+15
= \frac{41}{30}=
30
41
Step-by-step explanation:
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