async def main():
    (r1, r2) = (await asyncio.gather(fractions(0.1, 3, 1, 3), fractions(0.2, 6, 1, 3)))
    return (r1, r2)
async def main():
    (r1, r2) = (await asyncio.gather(fractions(0.1, 3, 1, 3), fractions(0.2, 6, 1, 3)))
    return (r1, r2)