4 2 5 − 1 7 9 ≈ July 8, 2019 16 32 64 128 4 2 5 1 7 9 4 2 5 1 7 9 as a fraction 2 4 5 x 1 7 9 1 5 2 7 4 9 sequence 4 9 8 1 3 6x )= 2 1 5 7 3 7x 4 1 x 2 9 x 7 5 7 98 4 5 * x 7 3 1 2 9 3 Estimate 4 2 5 1 7 9 by rounding to the nearest half 4 2 5 minus 1 7 9 9 4 5 7 1 2 as a mixed number