Penjelasan dengan langkah-langkah:
17.
= 5/8 + 2/3 × 1/4
= 5/8 + 2/12
= 15/24 + 4/24
= 19/24
opsi d
18.
= 3 1/4 × 9/10 ÷ 0,8
= 13/4 × 9/10 ÷ 8/10
= 117/40 × 10/8
= 1170/320
= 117/32
= 3 21/32
opsi c
17.)
5/8 + 2/3 x 1/4.
5/8 + (2x1)/(3x4)
5/8 + 2/12.
(5.3)/(8.3) + (2.2)/(12.2)
15/24 + 4/24 = (15+4)/24 = 19/24 (D)
18.)
3 1/4 x 9/10 ÷ 0,8.
13/4 x 9/10 ÷ 8/10
13/4 x 9/10 x 10/8
(13 x 9)/(4 x 10) = 117/40
(117 x 10)/(40 x 8)
1.170/320 = 117/32.
= 3 21/32 (C)
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Penjelasan dengan langkah-langkah:
17.
= 5/8 + 2/3 × 1/4
= 5/8 + 2/12
= 15/24 + 4/24
= 19/24
opsi d
18.
= 3 1/4 × 9/10 ÷ 0,8
= 13/4 × 9/10 ÷ 8/10
= 117/40 × 10/8
= 1170/320
= 117/32
= 3 21/32
opsi c
CARA JAWABAN
17.)
5/8 + 2/3 x 1/4.
5/8 + (2x1)/(3x4)
5/8 + 2/12.
(5.3)/(8.3) + (2.2)/(12.2)
15/24 + 4/24 = (15+4)/24 = 19/24 (D)
18.)
3 1/4 x 9/10 ÷ 0,8.
13/4 x 9/10 ÷ 8/10
13/4 x 9/10 x 10/8
(13 x 9)/(4 x 10) = 117/40
(117 x 10)/(40 x 8)
1.170/320 = 117/32.
= 3 21/32 (C)