Add 30/7 and 90/9
1st number: 4 2/7, 2nd number: 10 0/9
30/7 + 90/9 is 100/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
30/7 = 30 × 9/7 × 9 = 270/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
90/9 = 90 × 7/9 × 7 = 630/63 - Add the two like fractions:
270/63 + 630/63 = 270 + 630/63 = 900/63 - 900/63 simplified gives 100/7
- So, 30/7 + 90/9 = 100/7
In mixed form: 142/7
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