Add 7/80 and 2/90
7/80 + 2/90 is 79/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
2/90 = 2 × 8/90 × 8 = 16/720 - Add the two like fractions:
63/720 + 16/720 = 63 + 16/720 = 79/720 - So, 7/80 + 2/90 = 79/720
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