Add 70/72 and 15/80
70/72 + 15/80 is 167/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
70/72 = 70 × 10/72 × 10 = 700/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
15/80 = 15 × 9/80 × 9 = 135/720 - Add the two like fractions:
700/720 + 135/720 = 700 + 135/720 = 835/720 - 835/720 simplified gives 167/144
- So, 70/72 + 15/80 = 167/144
In mixed form: 123/144
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