Penjelasan dengan langkah-langkah:
a. 2/3 + 1 2/5 - 0,5
= 2/3 + 7/5 - 5/10
= 20/30 + 42/30 - 15/30
= 62/30 - 15/30
= 47/30
= 1 17/30
b. 3/4 + 2 3/8 -1/2
= 3/4 + 19/8 - 1/2
= 6/8 +19/8 -4/8
= 25/8 - 4/8
= 21/8
= 2 5/8
c. 4 3/6 + 2/3 -10%
= 27/6 + 2/3 - 10/100
= 1350/300 + 200/300 - 30/300
= 1550/300 - 30/300
= 1520/300
= 5 20/300
= 5 1/15
d. 7/2+0,4-1 1/4
= 7/2+4/10- 5/4
= 70/20 + 8/20 - 25/20
= 78/20 - 25/20
= 53/20
= 2 13/20
e. 5,5 +5%- 2 2/4 + 1/6
= 55/10 + 5/100 - 10/4 + 1/6
= 1650/300 + 15/300 - 750/300 + 50/300
= 1665/300 - 750/300 + 50/300
= 915/300 + 50/300
= 965/300
= 3 65/300
= 3 13/60
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Penjelasan dengan langkah-langkah:
a. 2/3 + 1 2/5 - 0,5
= 2/3 + 7/5 - 5/10
= 20/30 + 42/30 - 15/30
= 62/30 - 15/30
= 47/30
= 1 17/30
b. 3/4 + 2 3/8 -1/2
= 3/4 + 19/8 - 1/2
= 6/8 +19/8 -4/8
= 25/8 - 4/8
= 21/8
= 2 5/8
c. 4 3/6 + 2/3 -10%
= 27/6 + 2/3 - 10/100
= 1350/300 + 200/300 - 30/300
= 1550/300 - 30/300
= 1520/300
= 5 20/300
= 5 1/15
d. 7/2+0,4-1 1/4
= 7/2+4/10- 5/4
= 70/20 + 8/20 - 25/20
= 78/20 - 25/20
= 53/20
= 2 13/20
e. 5,5 +5%- 2 2/4 + 1/6
= 55/10 + 5/100 - 10/4 + 1/6
= 1650/300 + 15/300 - 750/300 + 50/300
= 1665/300 - 750/300 + 50/300
= 915/300 + 50/300
= 965/300
= 3 65/300
= 3 13/60