Add 80/90 and 72/64
1st number: 80/90, 2nd number: 1 8/64
80/90 + 72/64 is 145/72.
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,
80/90 = 80 × 32/90 × 32 = 2560/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
72/64 = 72 × 45/64 × 45 = 3240/2880 - Add the two like fractions:
2560/2880 + 3240/2880 = 2560 + 3240/2880 = 5800/2880 - 5800/2880 simplified gives 145/72
- So, 80/90 + 72/64 = 145/72
In mixed form: 21/72
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