Add 70/81 and 45/72
70/81 + 45/72 is 965/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 72 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
70/81 = 70 × 8/81 × 8 = 560/648 - Likewise, for the 2nd fraction, since 72 × 9 = 648,
45/72 = 45 × 9/72 × 9 = 405/648 - Add the two like fractions:
560/648 + 405/648 = 560 + 405/648 = 965/648 - So, 70/81 + 45/72 = 965/648
In mixed form: 1317/648
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