Answer:
5/8 lbs. I hope this helps :)
Step-by-step explanation:
given, 8 1/4 lbs. to 8 7/8 lbs.
lets multiply the 1/4 lbs by 2 to get the denominator to be 8, 1/4 * 2 = 2/8
with both denominators as 8 we can subtract the 2 from the 7, 7/8 - 2/8 = 5/8
the baby gained 5/8 lbs
