a) 1/5 × 4/9
1 × 4
────
5 × 9
4
4/45
b) 18/24 × 15/8
3/4 × 15/8
3 × 15
─────
4 × 8
45
45/32
c) 21/5 + 3/10
42 + 3
──────
10
45/10 reduce la fracción usando 5
9/2
d) 5/3 × 12/15 × 27/4
4/3 × 27/4
1/3 × 27
9
e) 15/4 × 3/12 × 2/8
15/4 × 1/4 × 14
15/64
f) 6 2/5 × 2 1/4
6× 1/5 × 2× 1/2
6× 1/5
6/5
g) 4 1/3 + 4/15
4/3 + 4/15
8/5
h) 5 1/2 + 4 1/6
5/2 + 2× 1/3
5/2 + 2/3
19/6
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Verified answer
a) 1/5 × 4/9
1 × 4
────
5 × 9
4
────
5 × 9
4/45
b) 18/24 × 15/8
3/4 × 15/8
3 × 15
─────
4 × 8
45
─────
4 × 8
45/32
c) 21/5 + 3/10
42 + 3
──────
10
45/10 reduce la fracción usando 5
9/2
d) 5/3 × 12/15 × 27/4
4/3 × 27/4
1/3 × 27
9
e) 15/4 × 3/12 × 2/8
15/4 × 1/4 × 14
15/64
f) 6 2/5 × 2 1/4
6× 1/5 × 2× 1/2
6× 1/5
6/5
g) 4 1/3 + 4/15
4/3 + 4/15
8/5
h) 5 1/2 + 4 1/6
5/2 + 2× 1/3
5/2 + 2/3
19/6