To add fractions, ensure the bottom numbers (denominators) are the same, add the top numbers (numerators), keep the denominator, and simplify the fraction if needed. This process can be done by hand or by using a calculator.
To add mixed fractions, the fractions need to be converted to improper fractions with the same denominators. Once added, the sum needs to be converted back to a mixed fraction.
To add fractions and whole numbers, convert a whole number into a fraction with the same denominator as the fraction that needs to be added. Add up the numerators and keep the denominator the same.
The simplest fraction that is equal to 0.3 is 3/10. Other fractions that are equal to 0.3 are 6/20, 9/30, 30/100 and any other fraction that can be reduced to 3/10.
Calculators that add fractions can be found both in-store and online at retailers such as Walmart, Sears and Office Depot. Prices and availability vary by brand of calculator, store and location.
When adding and subtracting fractions, you have to rewrite the fractions so they have like denominators. If the fractions have variables, the terms are not always easy to combine, but the process is the same. No calculator is needed.
To add whole numbers and fractions, the whole number must also be turned into a fraction to combine the two. For example, if the problem to be solved with 3/4 + 7, the 7 would become a fraction by representing it as 7/1. Any whole number can be easily turned into a frac...