Add 15/90 and 63/64
15/90 + 63/64 is 221/192.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 64 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 90 × 32 = 2880,
15/90 = 15 × 32/90 × 32 = 480/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
63/64 = 63 × 45/64 × 45 = 2835/2880 - Add the two like fractions:
480/2880 + 2835/2880 = 480 + 2835/2880 = 3315/2880 - 3315/2880 simplified gives 221/192
- So, 15/90 + 63/64 = 221/192
In mixed form: 129/192
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