口算13+14=10÷25=35÷910=1÷78=23×310=34×25×43=5×110

Question

口算

(1)/(3) + (1)/(4) =	10÷ (2)/(5) =	(3)/(5) ÷ (9)/(10) =	1÷ (7)/(8) =
(2)/(3) × (3)/(10) =	(3)/(4) × (2)/(5) × (4)/(3) =	5× (1)/(10) + (1)/(2) =	8× (3)/(8) +8× (1)/(8) =
55× (1)/(11) ÷ (1)/(8) =	(1)/(2) × (1)/(3) ÷ (1)/(2) × (1)/(3) =	0× (7)/(12) + (1)/(8) =	(4)/(5) - (1)/(10) ×4=
2 (1)/(4) ×2=	0.99×9+0.99=	(9)/(4) × (1)/(27) =	1 (1)/(2) ×8+1 (1)/(2) ×2=

Answer 1

(1)/(3) + (1)/(4) = (7)/(12)	10÷ (2)/(5) =25	(3)/(5) ÷ (9)/(10) = (2)/(3)	1÷ (7)/(8) = (8)/(7)
(2)/(3) × (3)/(10) = (1)/(5)	(3)/(4) × (2)/(5) × (4)/(3) = (2)/(5)	5× (1)/(10) + (1)/(2) =1	8× (3)/(8) +8× (1)/(8) =4
55× (1)/(11) ÷ (1)/(8) =40	(1)/(2) × (1)/(3) ÷ (1)/(2) × (1)/(3) = (1)/(9)	0× (7)/(12) + (1)/(8) = (1)/(8)	(4)/(5) - (1)/(10) ×4= (2)/(5)
2 (1)/(4) ×2=4 (1)/(2)	0.99×9+0.99=9.9	(9)/(4) × (1)/(27) = (1)/(12)	1 (1)/(2) ×8+1 (1)/(2) ×2=15