Sir Rom's Tan

  https://byjus.com/maths/mixed-fractions/#addition

  https://www.calculatorsoup.com/calculators/math/lcd.php?input=3%2F4%2C1%2F2&action=solve

https://www.calculatorsoup.com/calculators/math/fractionssimplify.php?n_1=2&d_1=8&action=solve  

  https://www.calculatorsoup.com/calculators/math/mixed-number-to-improper-fraction.php

  https://www.calculatorsoup.com/calculators/math/mixednumbers.php#subtraction