15 out of 5 is equal to 6
1/2
15 △ is equal to 40 parts, 45 parts, 6 parts, 7 parts, 24 parts
15 ÷ (20) is equal to 40 (30) is equal to 60 (45) is equal to 8 (6) is equal to 24 (7 +) is equal to 8 (5)
The sum of one third of a number and 25% of it is equal to 15
Recalling the happy pig
15÷(1/3+25%)=15÷(1/3+1/4)=15÷(7/12)=15×(12/7)=180/7