To multiply fractions multiply the numerators together and multiply the denominators together:
4/9 × 5/7 = (4×5)/(9×7) = 20/63
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4/5*6/7 = (4*6)/(5*7) = 24/35
5/8 / 4/7 = 5/8 * 7/4 = 5*7 / 8*4 = 35 / 32
4/5 of 7 is 5 3/5
700. because 5 time 4 equals 20 and 5 times 7 equals 35 and 35 times 20 equals 700
7/8 > 4/5 ? (cross multiply)7 x 5 > 4 x 8 ?35 > 32So that 7/8 > 4/5.