1.) 8/10-1/4
=8/10-1/4
=8/10+-1/4
=4/5+-1/4
=16/20+-5/20
=16+-5
---------
20
2.) 1/12-1/2
=1/12-1/2
=1/12+-1/2
=1/12+-6/12
=1+-6
--------
12
=5/2(Decimal:0.416667)
3.) 6/12-1/8
=6/12- -1/8
=1/2+-1/8
=4/8+-1/8
=4+-1
--------
8
=3/8(Decimal:0.375)
4.) 4/5+1/4
=4/5+1/4
=16/20+5/20
=16+5
---------
20
=21/20(Decimal:1.05)
5.) 1/5+1/10
=1/5+1/10
=2/10+1/10
=2+1
-------
10
=3/10(Decimal:0.3)
Im done na