Add 70/7 and 21/90
1st number: 10 0/7, 2nd number: 21/90
70/7 + 21/90 is 307/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
70/7 = 70 × 90/7 × 90 = 6300/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Add the two like fractions:
6300/630 + 147/630 = 6300 + 147/630 = 6447/630 - 6447/630 simplified gives 307/30
- So, 70/7 + 21/90 = 307/30
In mixed form: 107/30
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