Add 1/90 and 72/70
1st number: 1/90, 2nd number: 1 2/70
1/90 + 72/70 is 131/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
1/90 = 1 × 7/90 × 7 = 7/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Add the two like fractions:
7/630 + 648/630 = 7 + 648/630 = 655/630 - 655/630 simplified gives 131/126
- So, 1/90 + 72/70 = 131/126
In mixed form: 15/126
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