7 times 9 = 63, so 1 9th = 7. Therefore 7 9ths = 7 x 7 = 49.
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19/21. 4/7 + 3/9 = 36/63 + 21/63 = 57/63 = 19/21.
175 is 7/9ths of 225.
4/9ths is bigger than 3/7ths because a common denominator is 63. 4/9ths=28/63rds and 3/7ths=27/63rds. 28/63rds is slightly bigger than 27/63rds so that means that 4/9ths is slightly larger than 3/7ths.
350 7 9ths = 7/9 (7/9) x 450 =350
:) Well shouldnt you work it out by yourself??pay attention in school!!:)