23 + 2 19 + 3 + 3 17 + 5 + 3 17 and 4 twos 17, 2 threes and 2 twos 13 + 7 + 5 13 and 6 twos 13 and 4 threes 11 and 2 sevens 11 and 7 twos and a bunch more up to 10 twos and 5 11 twos and 3
3 ones
fifteen out of twenty = 3/4
The sum of 3 plus 4 is 7.
4/3.
23 + 2 19 + 3 + 3 17 + 5 + 3 17 and 4 twos 17, 2 threes and 2 twos 13 + 7 + 5 13 and 6 twos 13 and 4 threes 11 and 2 sevens 11 and 7 twos and a bunch more up to 10 twos and 5 11 twos and 3
two ways one and three and a pair of twos
3/4
3 ones
fifteen out of twenty = 3/4
4.5
They are 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15 and 16.
The sum of 3 plus 4 is 7.
11 and 3/4
4 and -1 have a product of -4 and a sum of 3.
4/3.
15/4 = 3 3/4