Add 49/70 and 80/90
49/70 + 80/90 is 143/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
49/70 = 49 × 9/70 × 9 = 441/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
80/90 = 80 × 7/90 × 7 = 560/630 - Add the two like fractions:
441/630 + 560/630 = 441 + 560/630 = 1001/630 - 1001/630 simplified gives 143/90
- So, 49/70 + 80/90 = 143/90
In mixed form: 153/90
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