Add 80/56 and 70/90
1st number: 1 24/56, 2nd number: 70/90
80/56 + 70/90 is 139/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
80/56 = 80 × 45/56 × 45 = 3600/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
70/90 = 70 × 28/90 × 28 = 1960/2520 - Add the two like fractions:
3600/2520 + 1960/2520 = 3600 + 1960/2520 = 5560/2520 - 5560/2520 simplified gives 139/63
- So, 80/56 + 70/90 = 139/63
In mixed form: 213/63
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