4 3/8 - 2 1/4 + 1/5 =
- 2 1/4
- 2 13/40
- 3 3/10
Explanation from PART66Online
Convert to improper fractions over a common denominator of 40: 4 3/8 = 175/40, 2 1/4 = 90/40, and 1/5 = 8/40. Then 175 - 90 + 8 = 93, so the result is 93/40 = 2 13/40. Care with the order of subtraction and addition is what keeps the answer correct.
E
erik.daros.mac asked · 16h ago
Non è chiara la spiegazione, la notazione delle frazioni improprie è sbagliata
Community Comments (1)
M
Marek_AME
5h ago
B. 4 3/8 is mixed number, means 4 + 3/8 and not 4 times 3/8, so 35/8 - 9/4 + 1/5 = 175/40 - 90/40 + 8/40 = 93/40 = 2 13/40.
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