Wykonaj działania na ułamkach zwykłych. A) 3 i 1/2+12 i 7/8 + 4 i 5/6=
C)1 i 7/8+ 4 i 1/3 - 3 i 1/6 =
E) 100 i 3/4+ 61 i 7/20 - 73 i 4/15=
F) 54 i 1/7- 19 i 5/9 - 7 i 1/3=
Za poprawne wykonanie działania dam naj odp i 20 pkt. Czas do gdz 18:00
jolanta37
A) 3i1/2+12i7/8+4i5/6=3i12/24+12i21/24+4i20/24=19i53/24=21i5/24 b) 1i7/8+4i1/3-3i1/6=1i21/24+4i8/24-3i4/24=5i29/24-3i4/24=6i5/24-3i4/24=3i1/24 c) 100i3/4+61i7/20-73i4/15=100i45/60+61i21/60-73i16/60=161i66/60-73i16/60= 88i50/60=88i5/6 d) 54i1/7-19i5/9-7i1/3=54i9/63-19i35/63-7i21/63=53i72/63-19i35/63-7i21/63=27i16/63
3i1/2+12i7/8+4i5/6=3i12/24+12i21/24+4i20/24=19i53/24=21i5/24
b)
1i7/8+4i1/3-3i1/6=1i21/24+4i8/24-3i4/24=5i29/24-3i4/24=6i5/24-3i4/24=3i1/24
c)
100i3/4+61i7/20-73i4/15=100i45/60+61i21/60-73i16/60=161i66/60-73i16/60=
88i50/60=88i5/6
d)
54i1/7-19i5/9-7i1/3=54i9/63-19i35/63-7i21/63=53i72/63-19i35/63-7i21/63=27i16/63