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hitung perkalianya lalu tambah kurangnya
1)5 3/4 x 7/9 + 4/5 = 23/4 x 7/9 = 161/36 + 4/5 = 805/180 + 144/180 = 661/180 = 3 121/180
2)3 5/6 x 3/7 - 1 2/5 =23/6 x 3/7 = 69/42 - 7/5 = 345/210 - 294/210 = 51/210
3)9/11 + 6/7 x 1/8 = 6/7 x 1/8 = 6/56
9/11 + 6/56 = 504/616 + 66/616 = 570/616 = 285/308
4)1 4/7 x 5/8 - 3/10 = 11/7 x 5/8 = 55/56 - 3/10 = 550/560 + 168/560 = 718/560 =
1 158/560
no 5 cari sendiri
semoga bermanfaat