Add 90/70 and 60/63
1st number: 1 20/70, 2nd number: 60/63
90/70 + 60/63 is 47/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
60/63 = 60 × 10/63 × 10 = 600/630 - Add the two like fractions:
810/630 + 600/630 = 810 + 600/630 = 1410/630 - 1410/630 simplified gives 47/21
- So, 90/70 + 60/63 = 47/21
In mixed form: 25/21
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