1. 3/8+1/24=9/24+1/24=10/24=5/12
2. 3/7+2/5=15/35+14/35=29/35
3. 3 1/18+5/6=55/18+15/18=70/18=35/9=3 8/9
4. 2 3/4+1 1/3=11/4+4/3=33/12+16/12=49/12=4 1/12
5. 1/3-1/5=5/15-3/15=2/15
6. 1-3/11=8/11
7. 3/4-7/12=9/12-7/12=2/12=1/6
8. 7-2 1/3=4 2/3
9. 8/15×9/10=4/5×3/5=12/25=0,48
10. 36×4/9=4×4=16
11. 5/6×30=5×5=25
13. 4 2/3×6/7=14/3×6/7=2×2=4
14. 3/7÷8/9=3/7×9/8=27/56
15. 7÷5/8=7×8/5=56/5=11 1/5=11,2
16. 1 1/4÷1/8=5/4×8=5×2=10
1. 3/8+1/24=9/24+1/24=10/24=5/12
2. 3/7+2/5=15/35+14/35=29/35
3. 3 1/18+5/6=55/18+15/18=70/18=35/9=3 8/9
4. 2 3/4+1 1/3=11/4+4/3=33/12+16/12=49/12=4 1/12
5. 1/3-1/5=5/15-3/15=2/15
6. 1-3/11=8/11
7. 3/4-7/12=9/12-7/12=2/12=1/6
8. 7-2 1/3=4 2/3
9. 8/15×9/10=4/5×3/5=12/25=0,48
10. 36×4/9=4×4=16
11. 5/6×30=5×5=25
13. 4 2/3×6/7=14/3×6/7=2×2=4
14. 3/7÷8/9=3/7×9/8=27/56
15. 7÷5/8=7×8/5=56/5=11 1/5=11,2
16. 1 1/4÷1/8=5/4×8=5×2=10