Hasil penjumlahan pecahan berikut ini A.4/5 + 3/4 B.1/2 + 2/3 C.2/5 + 1/6 D.1/3 + 3/7 E.5/6 + 4/9
Hasil penjumlahan pecahan berikut ini
A. 4/5 + 3/4
B. 1/2 + 2/3
C. 2/5 + 1/6
D. 1/3 + 3/7
E. 5/6 + 4/9
Pembahasan:
A. 4/5 + 3/4
= 16/20 +15/20
= 31/20
= 1 (11/20)
B. 1/2 + 2/3
= 3/6 + 4/6
= 7/6
= 1 (1/6)
C. 2/5 + 1/6
= 12/30 + 5/30
= 17/30
D. 1/3 + 3/7
= 7/21 + 9/21
= 16/21
E. 5/6 + 4/9
= 15/18 + 8/18
= 23/18
= 1 (5/18)