Mohon bantuannya ka.. 1. 4/5 x 1/2 - 1/4 = 2. 9/10 x 3/4 + 7/8 = 3. 4 1/2 : 1 1/4 - 3/4 = 4. 4 x 3 1/2 = 5. 4 1/2 x 3 1/2 =

Bab Pecahan
Sekolah Dasar Kelas IV

1) 4/5 x 1/2 - 1/4
= 4/10 - 1/4
= 8/20 - 5/20
= 3/20

2) 9/10 x 3/4 + 7/8
= 27/40 + 7/8
= 27/40 + 35/40
= 62/40 >> 31/20 >> 1 11/20

3) 4 1/2 : 1 1/4 - 3/4
= 9/2 x 4/5 - 3/4
= 36/10 - 3/4
= 72/20 - 15/20
= 57/20 >> 2 17/20

4) 4 x 3 1/2
= 4/1 x 7/2
= 28/2 >> 14

5) 4 1/2 x 3 1/2
= 9/2 x 7/2
= 63/4 >> 15 3/4

1. 4/5×1/2=4/10-1/4=8/20-5/20=3/20
2. 9/10×3/4=27/40+7/8=27/40+35/40=62/40=1 22/40 = 1 11/20
3. 4 1/2= 9/2
1 1/4= 5/4
9/2÷5/4=9/2×4/5=36/10
36/10-3/4=72/20-15/20=57/20= 2 17/20
4. 4×3 1/2=4×7/2=28/2=14
5. 4 1/2× 3 1/2= 9/2×7/2=63/4 = 15 3/4