13 4 /7 + 15 9 /8 + (-3/4) dan 21 3/9 -( -17 4 /17) + 2/12
Matematika
noviliaaditya1
Pertanyaan
13 4 /7 + 15 9 /8 + (-3/4) dan 21 3/9 -( -17 4 /17) + 2/12
1 Jawaban
-
1. Jawaban Najwa200711
13x7+4/7 + 15x8+9/8 +(-3/4) = 91+4/7 + 120+9/8-3/4 = 95/7 + 129/8 - 3/4 = 95x8+7x129/7x8 - 3/4 = 760+903/6 - 3/4 = 1663/56 - 3/4 = 1663/56 - 3x14/4x14 = 1663/56 - 42/56 = 1621/56 = 28 53/56 = 28,946