No, 21- (5 plus 2) does NOT equal 23.
7 and 2/15 + 5 and 10/15 + 9 and 13/15 = 21 and 25/15 = 22 and 2/3
25
23
1 + 2 + 1000 + 300 + 23 + 12 = 1338
45 + 8 - 23 + 2 = 32
480
346
2x + 2 + 5x = 23 2x +5x = 23 -2 7x = 21 X = 3
As written, 215 5 + 2 x 10 = 25
33
23
To calculate 1 23 plus 1 23 plus 2 27, first convert the mixed numbers to improper fractions or decimal values. Adding them together: 1 23 + 1 23 = 2 46, and then adding 2 27 gives you 2 46 + 2 27. This results in 4 73, or if you simplify further, you can express it as 5 1 (if you convert 73 into a mixed number).