Add 90/72 and 70/64
1st number: 1 18/72, 2nd number: 1 6/64
90/72 + 70/64 is 75/32.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 72 × 8 = 576,
90/72 = 90 × 8/72 × 8 = 720/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
70/64 = 70 × 9/64 × 9 = 630/576 - Add the two like fractions:
720/576 + 630/576 = 720 + 630/576 = 1350/576 - 1350/576 simplified gives 75/32
- So, 90/72 + 70/64 = 75/32
In mixed form: 211/32
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