1)1/29 × 8 1/18 = 1/29 × 145/18 = 5/18
2)4 23/44 × 4 = 199/44 × 4 = 199/11 = 18 1/11
3)1 5/16 ÷ 3/4 = 21/16 ÷ 3/4 = 21/16 × 4/3 = 7/4 = 1 3/4
4)14 94/99 + 5/18 = 1480/99 + 5/18 = (1480 × 2 + 5 × 11)/198 = 2960/198 + 55/198 = 3015/198 = 335/22 = 15 5/22
5)15 5/22 + 5 19/22 = 335/22 + 129/22 = 464/22 = 232/11 = 21 1/11
6)21 1/11 - 18 1/11 = 232/11 - 199/11 = 33/11 = 3
7)3+1 3/4=4 3/4
ответ: 4 3/4